It'll probably go back to being on a short CD or charge.I really hope this Eclipse mechanic doesn't mean we effectively have to choose between being in "good single target mode" and being in "good aoe mode", because it seems like it will take time to swap back and forth, and most combat changes fairly quickly especially M+. I can imagine it being very frustrating. Do an aoe pack, need to be in aoe mode. Ok we're at the boss, but I am still in aoe mode and this is a ST fight. Sure I could have moved to st during the trash but then I did bad dps for that trash using it to shift to st. I hope I am wrong.
Also starsurge extends the duration of the current eclipse. If we are in aoe mode and want to extend that we cast a starsurge? I wonder if Astral power is going away because I'd hate to have to forgo using starfall in aoe to use a starsurge to maintain a buff.