Just thought I would throw my “brilliant” idea out there.
Assuming Stargirl get’s picked up for a second season (and I have faith it will), I was thinking of how they could do the crossover next year.
Since we more or less saw the formation of the JLA in the last crossover, even though they will probably never call them that, and Stargirl will apparently cover the formation of the new Justice Society. I would love it if they would do a story that had a threat from Stargirl’s world come to Earth Prime and use it to have the Arrowverse JLA team up with their JSA. Finally a true JLA/JSA Crossover on TV.
They could limit the Arrowverse characters to basically the 7 we saw at the end of the crossover (with maybe some cameo’s from heroes on the regular show their episode aired on) and maybe not even all the Stargirl JSA.
Would also not nessecarily have to have all 5 (or 6 with the Superman show) and Stargirl have episodes. Could limit it to 4 or even 3 of the effected shows but have the full JLA team together.
While not as epic as Crisis it would be awesome to see the Arrowverse pay tribute to the JLA/JSA crossovers that were such a big part of comics, especially pre-crisis, complete with an alternate earth storyline.