What is your riding plan? Are you going rally racing, enduros or traveling?
Long trip or short vacation?
Seems to me the KTM SE is one of the best bikes in the world for off road touring. Must be expensive in Sweden, no? If you know the bike and trust it, what's the problem?
If you want a single then, again, it depends what riding you will be doing, how far and how long and where.
Not many taking 690 KTM's around the world, far as I know. Maybe you could be the first?
Big difference traveling for a year or going a month round Europe or Scandinavia only.
If you can afford the SE then you probably can buy any single you want. Why not get a Husaberg? Nice bike! I think they even make a 600cc now and road legal too? What an amazing bike! (I rode 450FE and older 550)
For serious travel, I would sell your SE, take the money, fly to USA and buy a cheap dual sport bike (XR650L Honda, Yam WR250R, KLR650, DR650, DRZ400S, KTM 640 Adventure) and go traveling from there. Lots to chose and much cheaper than Sweden. Maybe 50% cheaper?