Forgive the double post, but full entry lists now at the following links:
World Rallycross Entry List
Euro & Super 1600 Entry Lists
Capacity entry in all of the above:
25 World Supercars (+2 reserve)
30 Euro Supercars (+4 reserve)
25 Super 1600 (+2 reserve)
Plus the RX2 entries still to come: should be plenty of racing!