but this will give me two different profile,
Deja vu... I keep having this same conversation over and over. Why wait? You can use Luma3ds right now, set the default to sysnand, and still launch GW via MSET on N3DS or Gateway_cia on o3ds, or whatever. 50 years from now when they finally release their a9lh, all you will need to do is drop their file on the SD card. Done. There's no reason to wait for anything.
for example,games i played it on sysnand and save game on it, and games on emunand will have different save.