It won't be such a long time. Didn't Ana say he was expecting the campaign to end by the end of this summer?
In any case, I've made no secret that I intend to play Mari for a new campaign. The build I use will either be a Kalashtar Cleric (specializes in enabling with opportunity attacks) or a Half-Elf Bard (specializes in big at-will forced movement); both have some issues but do a good job capturing her essence. I doubt any other option will sway me, barring an exceptional Seeker article this month.
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http://images.wikia.com/clannad/images/6/6c/Kotomiafter.jpg
"Day before yesterday I saw a rabbit, and yesterday a deer, and today, you."