barge, re: Wave's mission...
First, I'm no expert on Wave's mission. There are others here who know far more about such things than I.
I think that Wave is about services. I usually categorize software and applets (non-firmware) as a service. But perhaps even firmware can be considered a service?
I think security is service when it is a package to secure the user experience.
Then there is metering, but I think that is no much of a consideration these days.
If IBM is moving toward services and utilities (are they one-in-the-same?) and the release regarding the sale gives logical reason for me to believe this; and if Wave and IBM have had a close working relationship over these many years (remember the juggler on the IBM site for a while many years ago), and based upon the release of the IBM sale of its PC business, I believe that IBM will maintain some kind of service footprint in its sold-off PC business, including its name. Further, I believe its relationship with NSM regarding the new TPM only a scant couple of months ago leads me to believe that IBM is keeping its connection to the computer services/utilities via this new TPM.
However, I defer to the wisest, including you, to discount completely any hypothesis I posit.
Best Regards!