I would love to see PC control via the various buttons but it won't be via ACT as the MCU itself isn't ACT compatible.
The first module in the PC chain is available but what it is varies depending on PC set up, not very helpful. If you haven't already please put in a bug report and feature request, the more they get the more likely it is to happen.
There's even one you can copy & paste.... although that was pre X1D so the EQ was available rather than the first in the chain.
http://forum.cakewalk.com/tm.aspx?high=&m=2403735&mpage=1#2403961 Any other VSTs in the FX bin are already accesible via the plugin mode.