The neocom will receive its big update with the patch, but the two biggest changes are issues that players have begged CCP to address since 2008. Tech 2 assault frigates are finally being rebalanced to bring them in line with other ships, and alliances will now be able to sign up for faction warfare. Other big changes include a boost to all sizes of Null blaster ammo and the release of new deadspace invulnerability fields for shield users. Head over to the official Crucible 1.1 feature page for a full list of changes.
[Thanks to Knoodlepot for the tip!]