GHQ stuff is great looking, but too tiny, even compared to IWM infantry. When a modern 60-ton MBT is about as big as a 'Mech's foot, there's problem in my mind's eye.
And good luck, SPAD enthusiasts (and I'm resisting the temptation to say "all three of you") - but frankly I'd back more republic/dark age/ilclan era vehicles. We're seeing the 'Mechs, let's get the R-10s, the JI2A1s, the Skadis, the Anats, the Recog Guide tanks, that are available to multiple factions. But that's my preference.
At the end of the day, IWM got to make commercial decisions.