Board Thread:General Discussion/@comment-10197675-20130806142227/@comment-24434525-20140301204926

Well the Dwemer are just one of Bethesda's "ace in the hole" as you put it. We still have the Tiger people of Akavir, the Ka Po' Tun led by Tosh Raka the Tiger Dragon. Who has expressed his interest in conquring Tamriel. So at some point in the future one can expect that we will be fighting off an invasion of tiger people. Especially as we have in game speculation that the Nerevarine, (and possibly Vivec) went to Akavir to explore or do whatever and hasn't been seen since.

Then there are the Falmer, which is also speculated in game that they may become more intelligent as time goes by and could become a threat to the surface, or as the snow elf, Gelebor points out, they may become open to the possibility of negotiations. However, with the connections to the Dwemer it is very possible that we will see the Falmer uprising in the same game as we see the return of the Dwemer. Of course all of this is entirely speculation, but its easy to see how many different game scenarios Bethesda has available to them.