Anyone else think it would be interesting to speculate on the bosses we will be facing in the final raid of this expansion? It's the Legion's last hurrah after all and I think Blizzard will want to send them off with a bang. Blizzard also seem to have settled on 9-10 bosses as a raiding sweetspot for a tier so let's stick to that as a guideline.
Sargeras as the final boss is pretty much a given.
Personally I'd like to see the following, in no particular order (and not all 9-10 lol)
1. Spider Demon boss. The Spider demons are a new addition to the Legion we have seen yet we haven't had one as a raid boss. They could do one here.
2. Dreadlord Council. Varimathras, Mal'Ganis and Anetheron as a minimum (Mephistroth and Tichondrius could be brought in for this too but that might be a stretch). We can't finish off the Legion and not tangle with some of these legendary characters one last time.
3. Talgath. The Eredar who hunted Velen for Kil'Jaeden for millenia. The last raid needs a strong Eredar fight and with the big two most likely dead, Talgath could be a good substitute.
4. Corrupted Constellar. The Constellar who watched over Argus as Algalon watched over Azeroth, this Constellar would now be enslaved to the Legion and would be like a dark version of the Algalon fight.
5. Rakeesh. This Eredar butcher would have reformed in the nether since his death on Azeorth and now awaits us in the final raid, another confrontation with Velen could happen here.