Some interspecies couples probably cant procreate in a conventional way. Its a safe bet however that a society as advanced as the GFFA has some medical tech that can allow interspecies couples to have children. A galaxy of countless intelligent species would no doubt have to pursue interspecies procreation medical research. There would probably be billions or trillions of interspecies couples spread across the galaxy.
Been binge watching TCW but Rebels still remains my favorite SW show. I enjoyed the trailer they dropped for Season IV. I am not overly heartbroken that it will be the last season but the show itself has had a good run so far. It got better after the first season.
I think Season 3 of Clone Wars was when it started getting really, really good. S5 & 6 were probably my favorites.
I'm rewatching Season 1 of Rebels right now. I'm liking it better this time around than the first time I watched it. I missed a few episodes I think. I don't remember Lando being in the first season at all.
I've finally decided that I'm going to complete my Star Wars Clone Wars blu ray collection. I've had the first two seasons and the film for years. So now when I get paid next month I'm going to buy seasons 3-5 and the lost missions. Can't wait.