Here's a post on Transfermarkt that I think says he had a recent trial at Stuttgart: http://www.transfermarkt.de/de/rona...uttg-ii/topic/quellen_154_1004704_seite1.html Soccer Talents links him with FK Mogren Budva. http://www.fussball-talente.com/Ronaldo_Rudovic-3_7-158706-2.html A '96 from New York, according to USSDA: http://academy.demosphere.com/teams/60852305/47187430-60852393/64804804.html Apparently has played for Montenegran youth teams.
Transfermarkt now has him on the U19s of SV Waldhof Mannheim, but I haven't been able to locate him on the club site yet.
Kicker shows an appearance (and a goal) with the team: http://www.kicker.de/news/fussball/...a-junioren/85441/spieler_rudovic-ronaldo.html
A few sites are reporting trials for Ruuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuunaldo at Partick Thistle in Scotland's top division.
http://www.transfermarkt.com/ronaldo-rudović/leistungsdatendetails/spieler/323712/saison/2015/wettbewerb/ALB1/verein/8671 TM has him at Albanian first division club KF Vllanznia Shkoder and having just recently made a couple first team sub appearances at CB. Club website doesn't list him but it also look like it hasn't been updated since the 13/14 season so just gonna take TM's word. Looks like the club are in 9th placeout of 10 (relegation zone) with 19 points from 22. Fans of the Albanian Kategoria Superiore must laugh at people in Germany and Spain who complain about lopsidedness. Top 2 have 52 and 48 points, bottom 2 have 19 and 11...
A link to a profile page for him on the club site, which indicates some appearances, is two posts above yours.
Looks like he was with Mornar in Montenegro's second division in 18/19. He may still be in the country though I'm not sure he's with a team.
T'Markt says he recently moved to Decic and has a few first-team minutes for them. https://www.transfermarkt.us/ronaldo-rudovic/profil/spieler/323712