I wouldn't be worried. "This year they will get something completely different and the "new" series of the HMs will be completely different to everything currently ingame." means that we should probably be happy. My money is on something better. Though I would definitely like to keep a reflection shield, "different to everything currently ingame" sounds good too.
Are we to expect a redo of the situation with the AHMs? They redefine gameplay completely, and are the best thing there, until eventually more stuff gets on their level?
Or are you somehow expecting to bring in something totally new without making it completely amazing? Because I don't think that that has been done in MQ yet. With the exception of DWA, which brought a bunch of new stuff, but wasn't completely amazing like some of the more recent new stuff. It did pave the way for awesome stuff though, the eagle and ARH both had reflection, though N/BoTs haven't really been amazing, they were too similar to regular nerfs/buffs, and are thus bound by the same balance as them. Besides IN/BoTs, but even them the caps just redefine into just infinite buffs of the cap which are smaller until enough turns.