meh,I think that'l either end up killing the hype or make even more people hold off on buying stuff cuz it leads to the following situations either:
A) they announe seraphon get "something" in february. People get overly excited, and hold off on buying stuff cuz they expect X Y & Z to change and get new sculpts etc. So until february little to no seraphon sales. Also, if the actual release doesn't live up to the hype people build up in their head sales will be down.
or
B) They announce seraphon get X, Y & Z in february, explicitly stating they won't be getting A, B or C. Which creates two issues; first february is ages away, so the hype will die down. And second, if the release isn't super interesting, say only a tome but no new model, people will just be moaning about how boring and little it is till february, kind killing the hype.
Admittadly, they could do more than they currently do (which is well nothing...) but I dont think they can do that much either more either..