I would say with ambition and building for the future, we could fill a bigger stadium.
If we made it to the Prem in 2016, and established ourselves (like Brentford, Brighton, Bournemouth) then we'd pull in more fans and need better facilities.
Unfortunately that didn't happen and we've lost 10 yrs. But we can reset and build again.
Hillsborough is a classic stadium, but all around the UK teams are upgrading to newer stadiums, it's what needs to happen to move forward and grow.