With the club losing basically their attacking department at the end of this season and at the same time maintaining their policy to not go on a spending spree, Kinoshita will be definitely closer to the first team next season. Also let's not forget that they are in a good position to qualify for Europe.
problem is, as far as I remember, there is another u19 player called Daniele Gabriele who has scored more goals than appeareances, (holy ****!) so I don't see Kosuke ahead of him. Also, add the fact that supposedly there is some forward in Freiburg II too already. And, I don't think Freiburg will not buy other forwards anyway (even if cheap ones). Again, it would be an awesome surprise of course to see him here and there, but I'd expect him to just spend the season in the II team.
I said he'll be closer to the first team, not that he'll belong to the first team. However, they'll sign players, but there never will be star signings, with which their academy players can't at least compete. Look at some of their youngsters (first team) and you'll see that they were all around 18 to 20 when they were thrown in.
http://www.transfermarkt.de/de/scf-ii-fuenf-aufruecker-amp-zwei-abgaenge/news/anzeigen_126383.html Kinoshita promoted to SC Freiburg II with 4 other players from the U19.
http://www.scfreiburg.com/teams/sc-freiburg-ii/meldungen/sc-ii-holt-punkt-koblenz Started and played until minute 89 today in Koblenz where there's a Takuya Takahashi playing. http://www.tuskoblenz.de/team/showperson/team/1/pid/2091 Match ended 1-1, no Japanese involved it seems.
http://www.scfreiburg.com/teams/sc-freiburg-ii/meldungen/testspielsiege-für-die-zweite Not too much info but Kinoshita scored in a test against Rapid Bucharest which ended 5-0. Not even sure if they played vs their first team.
7 goals on the season despite a shaky beginning and only 12 starts, encouraging. Have to see where he goes from there.