Ken Pontac, known for writing Happy Tree Friends and for co-writing Sonic Colours and Sonic Generations in the Sonic fandom, has reportedly returned for an upcoming Sonic game. The report was found in a description of Pontac in the Guest of Honour list for the upcoming AOD 2013 convention at AODSF.org where he is credited for writing the script for the new Sonic in the past year among scripts for other upcoming games and animated series.
We have screencapped the report for your viewing at the top of this page in case it gets edited.
Source: AODSF.org
Thanks to Ryan for the heads up!