Just as the title suggested, I personally don't think it will unbalance the game if this was release or implemented. For that matter, I feel that this will bring more depth, progression, and customization to our characters.

Basically, can we have all cross class skills unlocked to all jobs and not just to the specific jobs? Just like when it was like in 1.0.

Sure people will say even if so, players will just find the optimal way to play their job in. However, this opens up a whole lot more options for us players when we are not in raid. For example, with the new unsynced dungeons. I can now go in with my friend as my black mage and heal us through via cleric stance without having to wait for a healer to do so.

Furthermore, this will correct some issues some jobs are facing such as TP starvation and lack of AoE.

Also, we could expand on this cross class ability by adding some job ability to it? Such as the new abilities from the 3 new jobs.