Clearly in the opening lines, Ogotai and the advisor are talking about the negotiations with Temjim faction.
I'm 99% certain that the WTF-1 is indeed the SDF-1, just look at the bridge section, if you look at the lineart for the SDF-2 (Before being converted to the Megaroad), the bridge section looks really different. If the Spacy did build another Macross class ship, I bet it would have the modern, SDF-2 style bridge and not the older SDF-1 style one.
Also the WTF-1 have first generation ARMD carriers attached to it, while if it's a newer ship it should have the bigger and newer ARMDs as seen attatched to the Megaroad-1