Well there is no more acrobatics skill, no evidence for jump or levitation spells no climbing
But I also agree about levitation it will be wonderful to fly again, thats new axis to exploration, more fun, better roleplaying, unique tactics for enemies.
I say again
Levitation need to be done it also mentioned in Lore, was in most of previous games, It need to be better implemented, limitations for altitude, levitation can be high-level spell can cost much magicka for sustain constantly draining, need to concentrate when levitate and be dragged down by enemies when loose concentration, and most useful make NPC actually use magic, enemy mage can be much more interesting in combat if he can levitate at last like lich in oblivion and strafe backward without limitation, NPC can reach player in high places by levitation not stay down and wait when player shoot them.
Levitation even can be implemented with new magic system combine it with feather slowfall waterwalking add nice spell effect like dragon or bird wings or wind tremble at clothes and awesome spell will be created.
Flying in sky is one of fantasy things thats people always want, ok oblivion was divided by cells speed tree looks horrible from high but Skyrim has new engine and new trees is there still problem in implementation of levitation? If some one say thats levitation will ruin dungeons but there can still trigger zones of limit of levitation like in Tribunal, levitation can be limited in dungeons with no ability to fly high, there can still limit altitude in levitation spell.
There different ways make levitation good, not cut it out fix it.
Skyrim trailer show us thats new engine powerful and capable to make Levitation be awesome spell and didn't have oblivion limitations, thats feeling of Sky from eyes of dragon is unforgettable.
Modders work on implementation of levitation in Oblivion since 2006 and animation and scripting one of most hard things to do, but the done it just looks at some of this awesome mods in action
http://www.youtube.com/watch?v=GgrUPA-TlhM thats one most interesting since apply flying both for player and NPC, and AI can handle levitation very well
http://www.youtube.com/watch?v=6Rh7ZzYRBzQ
http://www.youtube.com/watch?v=577NFVOHeCs
http://www.youtube.com/watch?v=EmjpCqiaOcE
They are work hard for Idea for dream about Flying in Sky
Some speculations says thats Midas Magic show developers how unique magic liked by players and more popular then "boring" spreadsheet magic system
Midas Magic have different spells for flying why not take some inspiration from them?
According an speculation in this thread
http://www.gamesas.com/index.php?/topic/1169937-dragon-wing-tweak/
Dragons fly by their language in TES. The wings are for stability.
So they are levitating?
How about Dovahkiin, can Dragon Born also use they skills for levitation?
Dragons use their language for levitation, logically to say Dragon Born also can do thats so if not an spell levitation still can be an Dragon Shout, also was mentioned an Dragon Shout that will allow teleport to enemy back for stabbing, but if enemy is flying what will be done?
I still see levitation as spell, new magic system can handle levitation in an awesome way.
Lets design Levitation Spell for new magic system thats allow employ spells in different ways, since new spells have some sort of embedded script effect so we can add also more checks for conditions (I believe we still can create spells in CS from spell effects just all spells in game are combinations of spell effect and scripts and custom spell creation not available in-game)
For instance, you could blast enemies with a flame ball from afar, hold the button down to wield the spell like a flame thrower, place a rune on the ground to create an environmental trap that spontaneously combusts when an enemy steps on it, or equip the spell with both hands to deliver high damage fireball attacks that drain your magicka reserves quickly.
New Levitate can combine spell effects like
Slowfall
Jump
Levitate (arena like) This spell allows the caster to float slightly above the ground for duration of spell. Floating thus the caster can traverse pits, lava flows, or water chasms.
Levitate (morrowind like)
Feather
Burden
For example
Mode 1 Cast on self with one hand
Allow float over obstacles like pits, lava flows, or water chasms on small altitude with slow constant decreasing of altitude to the end of spell, weight of equipment decreased, player can freely move backward without penalty (similar to lich float in oblivion) speed the same that %PCname has.
Mode 2 Cast on self with two hands
Jump high from ground and alter altitude in air and better levitation for %PCname you can fly in any directions channeling high magicka drain you cant use bows or two-handed weapon in this mode, enemy can disturb your meditation by strike try to evade attacks player loose levitation and fall down until spell is not recasted on self, over-encumbrance, changing hand for another spell or one-handed weapon will change spell behavior to mode one.
Mode 3 Cast target one hand
Make target float in mid-air (make large weight target movable by telekineses) or not allow target to fall,
on enemy work like burden, If spell pushes the encumbrance level past its maximum value, the target becomes immobile. It will therefore be prevented from moving, and will be a sitting duck for pounding with ranged weapons, spells, or even melee weapons with a higher reach than the one it has, swimming enemies drown in water or flying enemies casted down from heaven.
Mode 4 Cast on ground
Make trap thats set enemy immobile by fully burden him trap casted with two hands set enemy high fly and drop them down at end.