hey guys, many might remember me.
im a Level 100 Allmighty ranger/mage/warrior.

well, i wonder if theres anything new in dungeon runners,
if anything to comeback for, and what to do on level 100.
(i left on the heave with the snowman century)

Quite a bit, actually. I would suggest checking the patch notes from build 121 up. Some of the builds are small patches designed to fix bugs, but there are some major additions in there.

Gameplay hasn't changed, so whatever you did as lvl 100 before is basically what you have to do now. However, of special interest is this, which outlines what's to come.