Still way too early to tell how scaled back it'll actually be, it's largely going to depend on vaccination timelines and whether new variants that evade these responses pop up. The news today that Moderna (and almost certainly Pfizer) still works against the South Africa variant is very good news for a more normal HHN.
If I were management I'd be strongly considering an expanded event timeframe (similar to MNSSHP) with lower crowds this year to encourage people to spread out their trips somewhat.
I actually see them cutting some weekday nights to save on costs versus expanding the event. I think it's safe to assume we won't be seeing 28/29 crowd levels.