Based on the search results, "This World (Extended Mix)" appears as a few different potential tracks, with the most likely being a dance/trance release:
This World - Wighnomy Brothers and Robag Wruhme Remix - Spotify this_world_extended_mix
A 5:48 trance track from the album "Sound Factory Hits Vol.2", released around 2010. Based on the search results, "This World (Extended
A 2009 trance release.
A track released in 2014.