XIV does not need a level cap increase now, and shouldn't see an increase after 2.0 either. As Sephrick said, the only official mention of level cap was that there were no plans to raise it up to 1.21.

There is no benefit to increasing the level cap right now as it will only hurt the game in the long run. Content needs to be condensed into lower levels with focus on 1-30 and then 30-45. The journey to 50 needs to be much more exciting and filled with diverse things to do.

Raising the level cap only defeats the purpose of all of the work that is being done for 2.0.