Sonic X - 2003 Cosmo's Work 3-25 was released on:
USA: 29 April 2006
Sonic X - 2003 was released on: Japan: 6 April 2003 USA: 23 August 2003 France: 19 November 2003 UK: 3 April 2004 Taiwan: August 2004 Australia: September 2004 Germany: October 2004 Hong Kong: 3 January 2005
A small number of Sonic games were released in 2003, most notably was Sonic Heroes, which was released at the very end of the year, December 30 2003. The other games were Sonic Pinball Party, debuting June 1 and Sonic Battle debuting in Japan on December 4th.
Sonic Elements was created in 2011.
There are English episodes of Sonic X already out, have been since 2003.
Dragon Ball GT - 1996 was released on: Japan: 1996 USA: September 2003 Canada: 5 September 2003
Sonic X - 2003 Worries for Sonic 3-24 was released on: USA: 22 April 2006
Sonic X - 2003 Sonic vs- Shadow 3-12 was released on: USA: 26 November 2005
Sonic X - 2003 Who Are the Metarex 3-20 was released on: USA: 18 March 2006
Sonic X - 2003 Sonic the Fugitive 2-8 was released on: Japan: 23 November 2003 UK: 6 September 2004 USA: 6 November 2004
Sonic Pinball Party - 2003 VG was released on: USA: 27 May 2003 Japan: 17 July 2003 UK: 31 October 2003
Sonic Battle - 2003 VG was released on: Japan: 4 December 2003 USA: 5 January 2004 UK: 27 February 2004
Sonic X - 2003 Get the Chaos Emerald 1-4 was released on: Japan: 27 April 2003 USA: 27 September 2003
X-Play - 2003 The Super Sonic Episode 7-1 was released on: USA: 2007
Sonic X - 2003 Shadow Has Returned 3-8 was released on: USA: 29 October 2005
Sonic X - 2003 The Vessel of Evil 3-9 was released on: USA: 5 November 2005
Sonic X - 2003 The Fatal Whirlwind 3-18 was released on: USA: 4 March 2006
Sonic X - 2003 The Lost Planet 3-22 was released on: USA: 8 April 2006