Supposedly the Clinton and Sanders campaigns are agreeing in principle to hold four more debates, should the DNC sanction them. Why the DNC would not sanction them is left as an exercise for the reader: after all, the only two candidates that matter both want the debates, for their own reasons. Bernie Sanders wants to capitalize on interest in his not-quite-such-a-long-shot-anymore campaign. Hillary Clinton needs more opportunities to try to somehow become a competent politician on the stump.
You'd think that the DNC would try to get out of the candidates' way on this. Then again... Debbie Wasserman Schultz is the head of the DNC, and I'm not sure that anybody is really overly impressed by the way that she runs things (typically, into the ground). The entertaining part? If the DNC doesn't sanction any debates, it may very well be because DWS decided to die on that hill, all for the sake of the shining principle of Thou Shalt Not Schedule A Debate On A Night That Might Have People Watching. Which sounds weird when I write it out like that, but then it's been a weird campaign season so far.
Not much left to add, except that the Democratic snoozefest that we've seen so far is entertaining, in its way. Just as long as you don't have to actually watch one of the debates. Which, thankfully, most of us are not required to do.
PS: I do have one final thing to add, actually: it would be fair to think that neither candidate really wants more debates. They just don't want to look like they're dodging more debates, either. Which might explain why both Hillary Clinton and Bernie Sanders are so determined to go to the wall to get the dates and times that they want, just like it would make any kind of measurable difference in the long, medium, or even short term. It's like a giant game of chicken where you win by making the other guy get bored and go home. Which, hey! - that's what's been happening to the Democratic base, too!