I would not recommend that. He did great and should try to use this success to get a bigger career. I think he could not really live from music until now. It would be great, if this success could help him to get more opportunities. Next to music I could imagine him in something like the Voice Kids as a judge, if you have that in Croatia.
As far as I am thiking of it, Baby Lasagna has no reason to go to Eurovision again. He is the true winner, he doesn't have to proove it again and he must has surely a lot of things to do so... ❤
One song cannot be performed several times in a row. Otherwise, then Aleksand Rybak or the song "Arcade" would have won the Eurovision Song Contest every time