Unknown yet. If you want to be safe, don't trade in a lot for DS. Its borderline. UF, EM and DX are sure-fire goners, DS might go and might stay, LM-on is safe.
Eh, I wouldn't be 100% sure of that. Wasn't LM released before DS in Japan, it probably won't happen, but, what if to keep things fair they rotate out LM instead and keeps DS?