Which class you want in FFXIV from XI Vid

[Kotemon]

I'd say Samurai, Geomancer, Dancer and some hybrid form of Red/Rune. Although I'm surprised Geomancer wasn't added already. However, Tactics and either the second or third FF titles might be a better selection to look at for possible or most likely job that could be added in some form or another.

Samurai doesn't dual wield.

It has in some past and side titles. I think it was in one of the tactics series you could unlock a dual wield trait and attach it to a Samurai. Then equip a second katana to put it on full offence. I'm almost certain FF2 (or was it FF3, Its the one where a character can equip two shields) could do this also but I haven't played it long enough to see if samurai was in it.