Not sure about that, largely because half the league is now Bournemouth, Brentford, Fulham, Brighton, Palace etc who wouldn’t be fetching too many up to Ewood (especially when you’ll have very few 3pm games).
We would only get close to sell outs outside the big boy games if they went back to the ‘Taking Back Ewood’ campaigns, i.e cheap STs in order to have Rovers fans in all stands outside the Darwen End Upper (and that won’t happen under this regime as they would totally misjudge the fanbase like usual and try and charge top whack).
A Brentford at 5.30pm would see 20k at best without a Taking Back Ewood.