A simple list of all the E3 2012 games I can find that feature bow-related weaponry.
Updated to reflect all of the conferences.
Updated to reflect all three days of E3.
Games without pages: Final Fantasy Dimensions for iOS & Android, Core Blaze for the PC, Titan Siege for the PC, and a version of Temple Run featuring the characters from Pixar's Brave.
Showing 1-10 of 40 items
1. Ascend: Hand of KulAscend: Hand of Kulhttps://giantbomb.com/wiki/Games/Ascend_Hand_of_KulOpens wiki page
Bow usage: Player
2. Assassin's Creed IIIAssassin's Creed IIIhttps://giantbomb.com/wiki/Games/Assassins_Creed_IIIOpens wiki page
Bow usage: Player
3. Disney-Pixar BraveDisney-Pixar Bravehttps://giantbomb.com/wiki/Games/Disney_Pixar_BraveOpens wiki page
Bow usage: Player
4. Crysis 3Crysis 3https://giantbomb.com/wiki/Games/Crysis_3Opens wiki page
Bow usage: Player
5. The Dark Eye: DemoniconThe Dark Eye: Demoniconhttps://giantbomb.com/wiki/Games/The_Dark_Eye_DemoniconOpens wiki page
Bow usage: Player
6. Dark SoulsDark Soulshttps://giantbomb.com/wiki/Games/Dark_SoulsOpens wiki page
PC and DLC
Bow usage: Player
7. DishonoredDishonoredhttps://giantbomb.com/wiki/Games/DishonoredOpens wiki page
Bow usage: Player
8. Divinity: Original SinDivinity: Original Sinhttps://giantbomb.com/wiki/Games/Divinity_Original_SinOpens wiki page
Bow usage: Player
9. The Elder Scrolls V: SkyrimThe Elder Scrolls V: Skyrimhttps://giantbomb.com/wiki/Games/The_Elder_Scrolls_V_SkyrimOpens wiki page
Dawnguard expansion
Bow usage: Player
10. The Elder Scrolls OnlineThe Elder Scrolls Onlinehttps://giantbomb.com/wiki/Games/The_Elder_Scrolls_OnlineOpens wiki page