As long as he and overlord aren't in the same wave, repeating the Megadisaster, I won't scream. As is, Blaster and Soundwave being back to back was not one of their more intelligent ideas. Though better than three consecutive waves of Jetfire Seekers.
I would not use a hasbro toy display as any reliable indication, as they often use multiple duplicates in their displays to show "how much fun these are with moar titanmasters!" It's certainly plausible that Overlord might cone with two titanmasters since his big defining feature was two powermasters. But in this, they could easily used the titanmaster from the vehicle mode to boost the display.
Edit: Oh no, wait. The vehicle mode tm is on the tank.
Still think this is just a duplicate for display, though.
So it seems Black Shadow is an overlord retool. I can't remember if I called that or not.
Can't tell if he's a quad-changer, or if he splits apart into two vehicles.
From the release order implied by the fact that we're seeing Blackshadow and not Overlord first I'd have assumed that it was more the other way around - that they'd designed Blackshadow to be able to be retooled into Overlord. Really nice looking mold, looks like a fun toy (not convinced about the base mode, although it does remind me a little bit of Sonic Bomber's...collection-of-parts mode).
Probably more tempted by it as Blackshadow than I would be as Overlord I think.
It seems to be a new trend, in fact people now seem to be calling it a 'pre-tool' as opposed to retool. Hasbro seem to think they can fool us all into buying figures but then release clearly what the mould is intended to be second. Like Sentinel/Astrotrain, Optimus/Octane, Megatron/Blitzwing and now we're seeing Trion was probably always meant to be Leo Convoy, even if that paint job doesn't come out in the US. I think the Black Shadow/Overlord is the same. They probably get more sales by releasing the more desirable figure from the mould second.