You just got to hope for modding availability then you can easily do these things yourself. So modding and option to create own levels is what you really want I think because then you can do everything you wish to see right on your own. From the looks of it they are simply improving on what the game already is rather then changing anything.
They might not respond because they are busy I mean just this month they released System Shock Enhanced and now it seems work has moved to Turok. They go from project to project and in between they are probably receiving new requests for other games or they already have something in the plans. All of this takes away the free time to respond to fans I don't think they personally just didn't respond to you so don't worry
On a side note maybe a thread about what we wish to see in the Turok HD remakes would be nice.