Depends what you mean.
If you mean, "Can new housing areas be added to either server?", the answer is a flat "no". The modules are HUGE, and we'd rather have what limited (or nonexistent) space that there
is available reserved for new RP/exploration areas which everyone will be able to use. New housing will not be added.
If you mean "Can a new house be placed in the module where one didn't exist before", the answer is a qualified yes. The qualifications would be:
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- The module designers would have to agree, since it would be an actual change to the module as a whole. The likelihood that this would be agreed to would also depend on where.
- There would be an astonishing cost, in-game, both in terms of True and materials. This cost, naturally, would rise in proportion with how "out of the way" the building would be, but the base cost would be what I would characterize as "extraordinary".
- You would have to purchase an existing house first, of course.
If you're talking about purchasing an existing house, then having the door "moved" to an existing (but unused) door elsewhere, this has been done in the past. It will likely cost several times the initial purchasing price of the house, and may entail additional requirements (such as raw materials).
Hope this answers your question!