It will most likely be 7.2
my understanding is that they PTC & CGTech don't have a cooperation agreement anymore, I base this on my dealings with both rep's when I have been dealing with issues.
CGTech what us to buy an interface module for creo, but I had already worked out how to plug my full version lisence into creo, so it calls my full version when running material simulation.
At the moment, I have 7.1 in Creo, and the full version of 7.2.3
I generate the file from Creo in 7.1, then switch over to the full version to work with. The only pain is if you save something in the later version, you can't open in the earlier version ( tool data base).
but that is easy to fix by opening the file with wordpad, and change the version number and save.
I don't have 7.3 at the moment, but will soon.
It would be nice if the update to the latest version series, it would also be nice if they make it easier to plug in the full version lisence ( it's a bit of a pain to do my way)