I would say that nobody but Danny knows what he's going to do next, except that I don't think even he knows yet.
The way I see it, he's given himself at least two general directions he can go with this roster. (we'll assume Woods is waived)
Plan A: Trade Blount with Banks as the bait.
Gabe has told us that there is no market for either guy, and I believe him. However, that doesn't make them any less available. The hope is that some teams will arrive at training camp and realize that they need more depth at center and point guard. If you think about it, you'd be hard to find many clubs that don't have those needs. When players start getting injured or showing up 30 lbs. overweight, then maybe our players suddenly don't look so bad.
It is true that Blount is overpaid. It is also true that Marcus is very cheap. If you picked up the options on his rookie deal, you have him for 3 years at around $2M per. If he doesn't work out, you cut him and move on. If you are a team with a $7M player that you don't like or need and you want a 2 for 1 deal, you know where to look. I believe that one of the reasons why Ainge has Bynum and Borchardt around is in case he has to dump Blount and Banks for picks or players that do not play the 1 or 5.
Plan B: Let the training camp battles begin!
We could see Bynum, Banks, and Greene will battle for the 3rd PG spot with the weakest link booted off the island. We could see Borchardt, Perkins, and Blount battle it out for the backup center position. If Borchardt can beat one or both of them, he gets to stay on the team. Otherwise (barring a trade) he could be cut. With his injury history, there's always the chance that he will make the decision easy by going down with any one of his various health issues. Which brings up another point. Anyone could get hurt in training camp. Instead of scrambling for a late signing, we could have just the backups we need right on the roster. You never know. All things being equal, I tend to think that it would Bynum and Borchardt cut.
Of course, there is the darkhorse option (Plan C) of a major trade (or even a mid-major trade) that would send out more players than it brought back. I still think this could happen, but there is zero buzz right now, so I'm not counting on it.