Doors and trapdoors would be nice! It'd be good to have two options tho, with windows and without, so it could either look like a normal trap/door or completely blend into the build.

Doors and trapdoors are in the next version, as for adding a windowed and non-windowed variety, that will come in a future update.

I am working on the pressure plates as we speak

Also would be nice to have Pressure Plates in Carpenter's style, with regulable redstone behaviour (activate for all, only players, only monsters, only items, and any combination).