Canon filed more patents (2013-47780 and 2013-37339) for a 14mm f/2.8 lens (see previous patent here).
Tamron's patent 2013-44964 is for a 10-18mm f/4 lens for APS-C cameras. Two different version were described - with and without image stabilization.
Next patent 2013-37105 from Sony is for a 1-3.62mm f/4.5-6.3 lens that will probably be used in a compact camera (35mm equivalent to 87-315mm).
Olympus patent 2013-50674 is for 12-40mm f/2.8 lens.
