How about the bringing back of transportation spells such as levitation and wall-removing(wasn't it on of the older tes games that had a spell that allowed you to remove a wall here and there), also i would love to see magical a.k.a. creatures not on earth added in as if normal more often(less wolf, more werewolf) also was it just me or did tes4 seem to be missing weapons(aka, katanas, dai-katanas, tantos, wasasakis, spears, throwing weapons, crossbows, sharp axes)
also in the games, when wearing light armor i didnt fell any different than wearing heavy, i just avoided combat alot more, it would be nice to see the armor system reamped, and have more customization, such as pauldrons, gauntlets, greaves, boots, cuircasses, every thing, each having an advantage for being light or heavy