Maybe, they will increase the nº of Combo points you can get. That will make Deadly Blow useful again for Rogues/Assassin. I just hope they don't break the game, giving 15-20 Combo points stacked.
Don't think that increasing the combo point maximum will do anything good.
Stop doing math about Assassin and other classes, PvP/PvE is more than just math, it works as a whole complement of attack and defense skills. Balance is more than just nerfing a skill and improving another.
Lol. Come on Vau, of course a game is more than math, but in a game it's the same thing as with nature or corporate management outside the virtual world. Either ignore math, take things as god-given and follow your instincts or analyse it and use logic and causality as your friend.
So guess what, although for all other classes the "complement of attack and defense" phrase is true as well, none of them has a 10sec ultimate attack. So what do you think is the Assassin lacking towards other classes (like a rogue f.e.) that there has to be a compensation.