So it (not very surprisingly) came to pass that Draco was not sent back to Hogwarts, at least not yet.

Might be some pressure off of Harry to actively harass Dumbledore what with the enemy pledge. Especially as Draco might be unable to continue with his part of the deal. Though Harry is probably curious at this point himself what the real deal is.

I'd still call it possible that someone else did the deed and Heh just took credit for the good of all, but the probability of him being directly responsible got boosted as he was depicted to consider it important that he doom his brother in person also. Then again, though I'd rate it unlikely, perhaps mommy dearest can be found in a private dungeon or a memory charmed witness protection program.

Anyway, Draco. He's probably restricted from communicating with Harry. As if that'd do any good, it having been established that they can communicate through Patroni. It would, of course, require Harry to reveal his Patronus 2.0 to Draco, though. Draco will certainly be the one to initiate contact, mentioning that he's in a secure location. It seems from TSPE part 6 that the Patronus just appears into existence if the caster is far away from the target, so if Draco actually is in a secure location, others wouldn't probably see it. Harry might just risk it.

So I'll bet there will be a visit from a silver serpent soon, though perhaps only after things have settled down for a couple of chapters.