Lewis said in an interview today: "We will have certain games that will be played in pre-season to allow a 50 per cent and a 75 per cent capacity and that's why the eye-catching game may well be into August.
"It doesn't necessarily mean we only have two or three pre-season games either. We may have more than that. We need to be fully satisfied that we can deliver to the fans exactly what we're saying we can deliver. We don't want to open for the first fixture without being in a position to.
"We're setting high standards for ourselves and the last thing we want to do is over promise and under deliver. Better communication streams up to then will also make our supporters aware of the stadium experience before they step foot in the place."
The 50 and 75% capacity ruling has to be undertaken and then passed before a safety certificate can be granted for the whole 12,000 (100%) seats can be made available for a match.