Sorry i saw that post a bit late Elal, my browser cache tricked me.
Right now, Chaos main tanking has got the biggest/most complete overhaul. So tanking with chaos main seems to be in a very good spot for the abilities/passives.
Ox is permanently testing the different foci, but Nirvelle is still changing talis and weapons. So a final winner is not set until we reach the "No more changes until publish" state. For dps, the differences between BiS weapons and other ones will not be as big as it used to be, so other choices will be more valid. Utility will play a stronger role for dps in top levels (e.g. bringing impairs or cleanses), so we most probably will continue to have several offhands to choose from according to the fight ahead.
There will def. be some new BiS talismen for tanking and healing roles, but since they are not yet in game, i'm going with the same approach as you: build up a set of maxed fusion-ready ones. We also do not yet know where they will drop (caches, bags, certain activities, ?)
As for the glyphs the layout is fixed:
Tanking is expected/balanced for 2 hit, 1 crit, 5 tanking glyphs. Tanking glyphs can either be 3 evade and 2 glance or 2 evade and 3 glance. Depends on your choice of weapon since some weapons focus on evading attacks, some on glancing them.
Healers are expected to run 5 crit and 3 crit power. Hit does not play a role since healing abilities are set to not glancing (and not triggering reflect shields).
DPS are balanced around the same as before: 2 hit, 4 crit, 2 crit power