'Any rumours?' We don't need rumours, we know facts.
Fact: Jaguar will only launch a new XFR if its performance is at least in the same postcode as the German 3.
Fact: the benchmark for performance is the new Mercedes-AMG E63 S 4Matic+ - see below.
Fact: nominally it has 612PS, against 575PS for Jaguar's current highest tune state of the AJ-V8; actually it has at least 650PS, as shown by the acceleration data of the E63 S, and the Sport Auto record N'ring laptime for the '585PS' GT R, with the same 4-litre V8.
Fact: JLR cannot make the 20 year old AJ-V8 generate ~650PS reliably, and with ~200g CO2/km
Thus, not rumour, the new XFR will not happen, because it cannot happen - QED.
Fact: It, a new XFR, can only happen when JLR has a new V8. That will not happen, as disclosed by the UK press' attempt to hide the fact that no new JLR 'Ingenium' or otherwise V8 exits and JLR have approached BMW to buy theirs, either the current 4.4-litre V8 or a mooted circa 2018- brand new 4-litre V8.
Fact: If a new XFR eventually appears, it will be 2018 or later, and it will come with a BMW V8, by which time the whole company(JLR) might be sold, due to overwhelming demands for spending on genuine new platforms, RDE-compliant diesels, autonomous driving etc..
from Germancarforums.com:
'Another video on the acceleration but this one is timed and it[Merc-AMG E63 S 4Matic+]'s totally insanely fast:
0-60km/h - 1.2sec
0-80km/h - 2.2sec
0-100km/h - 3.0sec
0-120km/h - 4.0sec
0-140km/h - 5.0sec
0-160km/h - 6.1sec
0-180km/h - 8.0sec
0-200km/h - 10.0sec'
https://www.youtube.com/watch?v=AvnfDrRZBLk