Joe...not true. The F-14 may be on the way out...and not in active service, but many are still airworthy.
It's a bit like the fact that some WW2-era B-17s are still airworthy...and of course, those are very, very obsolete:
http://www.azcaf.org/
http://www.commemorativeairforce.org/
http://www.commemorativeairforce.org/images/CAF_Aircraft/Ghost_Squadron/GhostSquad-B17.pdf
(I could go on, as a pilot and obvious aviation enthusiast...but, the Internet is now available to EVERYONE, so a simple search will find other sites).
EDIT: And as a modeler....the F-14 is still a viable candidate, for modeling...whether as a 1:48 or 1:32 scale plastic model, or even in 1:6 or 1:8 scale as an R/C model. There are MANY possibilities. AND, this includes just about EVERY airplane in the past, as a candidate to model, in various scales.
To attempt to get back ON-TOPIC....this "mystery aircraft" might be one that already has a model kit out there....