110% quatum will be an entirely different computer structure but given we have to learn about it to build it the only way to do the calculations and more importantly the simulations esp. when it comes to materials science is going to be with El Capitan and Frontier.

Odds are with the National Lab backlog its going to be roughly a year. Everyone wants computation and the only way they could get further ahead in line I would assume would be to trade in Azure Compute power. The US DOE have launched 5 NQISRC that are specializing in the QIS research https://nqisrc.org/