Today, on June 8, 2015, an entity believed to be Electronic Arts (due to representative being J A Kemp, which EA has been working with for a long time) filed a trademark for "Mirror's Edge Catalyst" in Europe via the Office for Harmonization in the Internal Market (OHIM). It is a basic CTM filing for computer game software:
Trade mark information
Name: MIRROR’S EDGE CATALYST
Filing number: 014220396
Date of receipt: 08/06/2015
Nice classes: 9, 41 ( Nice Classification )
Filing date: 08/06/2015
Filing language: English
Second language: French
Application reference: TM402329EM-BRM/JXM
Trade mark status: Application filed
Acquired distinctiveness: No
Goods and services
9 Computer game software; downloadable computer game software via a global computer network and wireless devices; video game software.
41 Entertainment services, namely, providing an on-line computer game; Provision of information relating to electronic computer games provided via the Internet.
J A KEMP
Legal status: Legal Person
Country: GB - United Kingdom
Post code: WC1R 5JJ
Address: 14 South Square Gray's Inn
Correspondence address: J A KEMP
14 South Square
London WC1R 5JJ
Since last year, the OHIM doesn't show, for security and data protection purposes, the owner of a filing until the application fee is paid, so for now we can only assume that this is EA's doing. Hence why I marked this as rumor. This label can perhaps be removed from the title once more information becomes available. Of course, there is an offset chance that this is a hoax, but it seems very unlikely.
There you have it anyway. Could it be the new title of the upcoming Mirror's Edge maybe, or is it related to something different? Whatever it is, an answer at E3 next week isn't unthinkable.