You should have said, alter the levelling curve for overall level... when you put 'increase' and 'maximum level' together it's rather implied that you're speaking about... 'increasing the maximum level'
And to that then, i'd have to say no. All i can see happening is battles being shorter and an even more tedious form of levelling arise since the new, condensed curve would have larger exp gaps I could imagine even 70-71 taking months. The other method i thought you were talking about, i could 1/2 support - increasing the maximum level so that the extra exp players stack on after reaching 110, is accounted for, so that it's not so easy for players to reach max base level. I guess a widened curve is no better towards the end, but current players wouldn't feel like it, and we want to please people with updates, not have them wake up to a level, hp and enchanting drop.