Looks to me like i1Match will still stay the same. If you want advanced printer profiling you would use i1Profiler from the upgrade (not sure why you would want to use i1Match if you have i1Profiler).
That's the way I interpret the info on xRite's site.
I'm mixing things a bit. My concerns with i1Profiler have more to do with (what I've read to be) the level of control in monitor profiling compared to the i1Match. Since I'd still be able to use the i1Match I guess it would be okay.
I'd rather just have gotten the upgrades I needed for the i1Match. I missed that by a month (!). They pulled the upgrade generator for i1Match off their system at the end of April.