Quote Originally Posted by Vingtdeux View Post
Pure speculation, but I believe the 5 available spots left on the skill bar are tied to future cap increase.

Following the same pattern of skills acquired every 4 leves (and considering there won't be additional cross-class skills spots available), that'd mean there's enough room to get to level 70 before reaching 20 skills + 10 cross-class.

They already stated that switching to a job will reduce which cross-class skills you can use or the number of them, so they will prolly fit among the 10 cross-class skills spots available.
your not counting job which will come before that, also things like throwing items, and the plan on letting you add items to the bar as well. They really arent saving any/much space for new skills even without job abilities, throwing weapon and potions alone would kill 2 more slots. (it is possible that they will make jobs get access to only 5 cross class skills as thier limiter, adding more space to the bar)