Those 2 things will change a lot how we see things, rank 8 will give us an idea on what the last classes in the game look like and further ranks of the ones around ranks 6~7.
Especialy the new card system through which you can have very big stat additions through cards, which COMPLETELY changes stat alocations for PvP players mostly. Since the PvE ones will only use % damage cards anyway.
So, we will need a restat potion by then, possibly free to all players but only 1 and more to be bought but untradable between accounts. Also maybe each char would only be able to buy one.
Also: peoplo will complain things like, grind full INT then turn full CON. Grinding demands a lot of time anyways and if it’s not possible to reset stats in a game that requires so much effort and changes so much from time to time then it’s fated to live a short life. People won’t remake a level 280 char if they need to change their stats only, it’s such a stupid reason they’ll just quit, as many have been doing by now.
TL;DR
My build is correct but the new card system changes everything on stats. Everyone will end up having the same problem if they are going to use STATS or HP cards to replace CON or SPR or DEX and make a better use of their invested points (which is a big thing in thi game). Rank 8 is just another solid reason.