Eurogamer's speculation is of a possible 'Singularity: What's in the Kara?'
As 'Beyond: Two Souls' gets closer to completion, Quantic Dream has been spotted registering the domain name SingularityPS4.com. The developer has previously registered heavyrainps3.com and beyondps3.com prior to announcing those titles.
Eurogamer has adroitly pointed out that Activision holds the trademark for 'Singularity,' which would necessitate a subtitle. Kara's splash still resonates, making it as good a possibility as anything.