Good point, TFS.
There is a possibility he's dragging things out because the vaudevillainy show isn't going to be the success - albeit small, given the size of the venue - they expected it to be. I mean, why would Vest, Miranda and Ames show up to do a Kinks cover on King 5 in March, when the show is in May? If tickets had been snapped up well, there would be no need to sell it on TV. And now that backfired in a big way, making even several hardcore Vest fans give up on him, he will have even more reason to drag the settlement out for as long as he can, for all the reasons mentioned in previous posts.
His only decent meal ticket is playing under the QR name, and he's become very aware of it, now that he's starting to realise all his other avenues are leading to dead ends. Hence his more subdued and conciliatory tone of voice last night on Trunk - in spite of his continued spinning (yeah, the press was to blame for this split to be so ugly. Riiiiight), and his backpedaling in recent interviews about parting ways on good terms. It's finally starting to dawn on Vest that his actions have very dire consequences and he's played it so dirty, QR won't let him have anything beyond what's reasonable and-nothing-more. He only has himself to blame for that, even though he'll never admit it, not even to himself.