Thanks for the list, I wasn't sure which features people were going to miss... I also haven't put up a complete list of the minor tweaks. Some of this stuff is already in Risujin mod. Let me edit it to what I still need to add...
Xael MkII
Telenodes can teleport
Tranquilizer saw
Bile Dretch
Obituaries display alien class and human defensive equipment.
Barricade health and regen doubled
I won't add the voting system because there is no sudden death vote and the 2/3 majority is no longer needed I think... Also jetpack wobbling was probably more annoying than interesting.

The rest of the list is actually already in the mod.
Who cares about animations in a gameplay test?
The gameplay was working well actually...