After all the promise Rojas showed at Melbourne Victory esp including being A League player of the year in 2012-13, I'd be disappointed if he never played in Europe at a higher level than the Swiss League.
Still he is only aged 24, so plenty of time crack one of the bigger leagues.
Mathew Leckie who is a similar age, went from the A-League to the Bundesliga in 2011 and also failed to establish himself - in his case with Moenchengladbach (only just over 100 minutes on the field in his one season).
Leckie was hastily offloaded to second tier Frankfurt where he appeared regularly for two seasons, then was sold to Ingolstadt where he gained promotion.
This season he appeared in every game for Ingolstadt in the 1.Bundedliga, the most appearances of any of their attacking players, and was an important player for them in securing eleventh place.
Although Rojas failed to impress in his brief sojourn on loan in the 2.Bundesliga, he's been playing regularly in Switzerland this season, and Leckie's career path suggests there must be some hope for Rojas yet...
Even Wynton only moved from Switzerland to the Bundesliga at age 27. He had played nearly 200 games and scored nearly 100 goals by that stage though.