Some context might help, but here are a couple additional suggestions. During a discussion, you could just say "et ?". For "Okay", you could also use "oui ?", pronounced ouiiiiii. Both should be pronounced as questions, with the tone going up at the end. But the longer suggestions in the other answers are more likely to fit your need.

One could be tempted to translate as "Et alors ?". I did not mention this at first because it would usually correspond to "so what?", but as @Kaiido explains in a comment, if you look and sound interested when you say it (as opposed to bored or dismissive), it can work just fine.

"Et donc ?", as suggested by @Aaron, nicely avoids the connotation of "et alors ?" while specifically asking about the missing "point".