I highly doubt Siva will be the theme for next season
I understand that the leaks and amount of exotic ornaments are clearly implying a resurgence, but I highly doubt it'll be the driving force for season 11
Once again, as I have continued to say since shadowkeep, each season will continue the story or plotline of the first 3 DLCs of Destiny 2
Season of dawn continued the Saint-14 plotline from curse of Osiris
Season of the worthy continued the Rasputin plotline from warmind
So it's only logical that season 11 continues one of the many plotlines from forsaken such as the scorn Barons, Uldren Sov, the dreaming city curse etc.
Say what you will about the seasons in general, but you must admit that they do an excellent job of continuing the many storylines Destiny has accumulated. Even if we'd like more.... Grandiose ways of doing so
Tl:dr
Siva won't be the theme of next season
-
Yeah, my guess for season 11, is that we’ll go back to the tangled shore and dreaming city to finally break the curse, Uldren will return as the newest vendor, the season pass will have taken ornaments(I imagine), and it will lead into the next big dlc. I’m assuming we will then get a reprised dreadnought now controlled by Savathun. Maybe we’ll team up with the uldren.