To narrow it down to 1 choice is really tough since -as I wrote in my
thread of May 26th, 2013- there's quite a few thing I'd love to see:
1) A return of the Twins form Death in Luxor.
2) A Transylvanian Adventure with a primer concerning (Romania, Moldavia, Bulgaria and surrounding Nation)
3) A Turkish Adventure (The Cappadocia area could be good)
4) An Arabian Desert Adventure
5) A Sahara Desert Adventure (Maybe the legendary city of Tombuctu).
6) A Himalaya/Tibet adventure with the Yeti or the Migo
7) An Invictus Era (or dark Age Era for that matter) could be interesting too.
For that I think I'll go Other -since I would like to see adventure in various Location or time. However if I could have 2 votes I'd go "Twin" and "Other".