If you have the 6-speed transmission now you will be a little disappointed in the 5-speed that will be in the 2012. But it will get you there.
We went to a 35' 2016 Bounder 34T from a 30' Forest River Sunseeker 2860 DS shortly after I retired. We were happy with the Sunseeker but I wanted an upgrade. That being said we planned on more travel but life happened. The extra space is nice when those times when she threatens to kill me and we need a little space to ourselves. The big thing for us was the opposing slides in the front which gives us lot of room when we have the 4 grandkids. Selling point for the DW was the combo washer/dryer. Less closet space but we take less cloths and if we can't hookup it serves for a hamper.
Downside is she will not try to drive it. At least with the Sunseker she would move it ten feet forward and five feet backwards.
Bounder has a 242" wheelbase and it turns really nice and sharp. the E-450 took the better part of 40 acres to turn.
Watch for storage creep, as you will have more space and tend to use it.
Enjoy no matter what you decide.