About combining spells or not...

We already know of two instances in which it was possible:

1. A shield spell + shock spell produced a shock shield spell that damaged enemies around you

2. A fire spell + shock spell produced a shock-fireball

Those two were showed in that gameplay video that was presented to videogame magazines and they reported it in their anolyses.

Could this mean that they are getting rid of map markers on the compass? As in, markers only appear once you locate the area for fast travel purposes.