If the World Cup remains the pinnacle of the 50-over game, for England and Australia there’s nothing quite like a renewal of Test cricket’s oldest rivalry. But now there’s arguably more at stake for both sides than the series result. For England, a home season billed as the most important in a generation started brilliantly with the side’s impressive run to a first men’s World Cup title. International cricket in Britain emerged from behind its satellite television paywall for the first time since the celebrated 2005 Ashes so that millions could watch England’s nerve-shredding Super Over win against New Zealand at Lord’s earlier this month. Building on that groundswell of support is a key part of the England and Wales Cricket Board’s post-tournament strategy. Regaining the Ashes represents an ideal chance to keep those new followers on board, even if none of the five Tests are on free-to-air television. For Australia, an Ashes series win under the dignified leadership of Tim Paine would help draw a line under the ball-tampering scandal in South Africa that led to long bans for former captain Steve Smith, David Warner and Cameron Bancroft. All three batsmen are likely to feature at Edgbaston, with Bancroft…