Last night I got on a level 50 character I hadn't played since last March. Looking at it, I noticed half of the slots were empty. Then recalled I had an interruption during the respec and lost a ton of enhancements (they can be replaced). Annoying yes.
Afterwards, I finally decided to respec my first character on homecoming. Didn't lose any enhancements this time!! A major annoyance is the power trays. I really wish you wouldn't populate it like that. I would prefer you don't change them except for power that aren't selected during respec and let me deal with that instead of this large amount of work to do. I am aware that power trays are likely wiped at the start of respec but it doesn't have to be that way, you could keep a list and ask at the end to use it to repopulate the trays. There could be a import/export thing too.
These are for discussion purposes only not a request. Discuss.