I'm not a fan of TE/WT, but if someone really wants to play these versions, their revival is quite possible – at a new technological level, through the Baratortch patcher, and not through ERM.
For example, someone could put together a set of plugins (like Armageddon), and here we have WT, essentially with full simultaneous turn-based gameplay and 100% support for the HD mod (because in this case, the HD mod isn't installed on top of WT, but rather, WT in the form of plugins is installed on top of the HD mod).
And by the way, it is indeed quite possible to implement an HDWTLite build.