I'm all for bringing Apollo over. He's some much needed queer representation (and isn't a retcon of an established character), actually does function differently from the Kryptonians (and naturally would work well with them) and overall fills a few needed niches in Metropolis.
But I will punch someone if he gets relegated to "gay best friend" of the Superfam, showing up mostly to be a walking sundip for one of the Els or otherwise a token.