When is Nova coming to Heroic/Legendary Packs?

Anyone know how long it takes for a new 4* to appear in base packs? Been sitting on a couple since I haven’t been able to push on the right events to get Nova.

Usually the start of a new season, so sometime next week I think.

I thought they said before, new heroes take 30 days before they show up in regular packs.

No, it’s usually done at the start of next season. Next week should be right.