I don't think Inventory is getting promoted with the forthcoming OCI 7.3.2 / SP 2 for 7.3 releases, which are due early next month.
I would state that I would expect the next releases to officially promote our Inventory package.
Are you evaluating our Performance beta? That will be shipping as part of those aforemented releases, but if you are on 7.3.1 I could get you a patch now
We are in earlier innings in the world of Performance, such that I tend to expect that whenever we ship a SP3 for 7.3, it will promote Inventory, but perhaps not Performance out of beta.