The last I read about the ever-changing Green Lantern show on HBO Max is that is was being retooled into a John Stewart focused series. I don't know if that is still the case now that James Gunn and Peter Safran have been tasked with charting out a 10-year interconnected plan for the DCU. Hopefully when everything shakes out, John, Hal and the rest of the Corps will have places of prominence.
The Vision met up with Hal Jordan in STF #607, and then with a couple of co-stars in STF #3019...