To Sequel Or Not To Sequel

I have narrowed down my NANO choices to two: The Sequel and the Non-Sequel. I can't decide which to do.

The Sequel would be a follow-up to my only finished manuscript, "Wanted," which I intend to re-write in early '06 and prepare it for submission. The advantage of the sequel is that I already know the characters, and I know where the key personal relationship is going. The drawback is that is a thriller, and I have a vague idea of the crime that would be committed, I have no feel for the villain or much of the rest of the key plot. This is by nature a plot-centric genre, and may not work in the 30-day madness of NANO. But . . . it would be cool to have a sequel at least well in progress when shopping around "Wanted" in the future. Of course . . . if "Wanted" doesn't sell, the sequel is pretty much a waste.

The Non-Sequel would be a trashing and re-starting of a novel that is about 5,000-10,000 words along the way. This one could be written quicker, I think, and I already have done some thinking about it. And since it would involve trashing an on-process novel, it wouldn't add to my already too-long list of unfinished manuscripts. But I don't know if I have the guts to delete what I've already done . . . .

It's a tough call.