raise temp on last few days of nut brown?

I've had an extract with grain Nut Brown Ale in the bucket since 1/8 (today is 1/30). I'm going for a full 4 weeks in the primary and then to keg. The first week of fermentation, I kept temps around 64F and then they have been at about 65F up until now. My question, would it behoove me to raise the temp into the low 70's for the last week of fermentation to help the yeast clean up after themselves, or is this not so much worth it in an ale? Thanks!

After 3-4 weeks it probably won't matter. You can ramp it up if you want but I suspect the yeasties are doing just fine.

Ive been doing it and it develops a small froth yeast rafts bubbles kinda like a second ferment.Not shure if thats a second ferment but something is going on.