Hi,
this is maybe not totally new but in the past when i checked some demos of plugin chainers for loading VSTs in Pro Tools they did not really seem to work properly, especially with Tone2 plugins.
The AAX version of the latest Blue Cat Patchwork v1.7 so far seems to work nicely with Saurus 2 and also Electra 2.1 (both are new updates).
WIth Nemesis and Rayblaster it does not seem to work properly yet. In that case a kind of "generic" GUI seems to appear and the plugins mostly crash. With Gladiator 2 Pro Tools seems to crash immediately.
So while a few plugins like e.g. Saurus 2 and Electra 2.1 seem to work in Pro Tools 11 this way it still seems to be far from the option to run all kinds of VST2 plugins in Pro Tools.
Ingo