I read the various user written guides to the class changes. (I have at least one alt for each class. Some are happy. Some are not)

I understand that you must spend trait points (1 in the selected "base" branch, 2 in the others) in order to unlock skills and buffs, ok.
And I also seem to understand that at level 85 you can expect to have about 55 of these points.
I remember vaguely of having read somewhere about obtaining one point every other level. Is it right?
So I think the other 12-13 points come from class quests and deeds. Correct?

How have class and legendary quests changed? Do they simply grant points or also "unlock" some skill in the trees that is otherways not buyable?
Are the completed deeds relative to skills that have been removed still worth something or not?

Any detailed info would be appreciated, thanks