Summary of new stuff with the website makeover:
Background
New race colors, shading, starlight and particle
Lore section:
Description of Royalist and rebels for each race
Faqs section:
New higher system requirements for rebellion
64bit executable and support for 4GB of ram
Features Section:
Lists Shading improvement, detail on new ship classes and says only the royalist and rebels get titans.
Which hints this picture could be infact ingame by the looks of the websites background with new shading features.

Also hints titans are a late game unit.
.. . Neutral race has new capital ships ,abilities and rebalanced abilites etc reworked.
Ai gets a major boost ..
Titans get up-gradable abilites.. 
Single player: We get to play through 10 scenarios --awesome: Offline fun
If u find new things,, plz post