The speculation needs not start from zero. For the 2007-2008 kits:
HOME KIT = unchanged, this year's home kit is retained.
AWAY KIT = a new WHITE/LIGHT SCARLET shirt matched with BLACK/LIGHT SCARLET shorts.
EURO AWAY KIT = a new BLACK/LIGHT SCARLET shirt matched with BLACK/LIGHT SCARLET shorts.
This means the current yellow away and the green/white kits will be discarded at the end of this season. Detailed designs / cutting / pattern of the two new shirts are not yet available.