Firstly: this should really be in the G'14 board.
Secondly: here's a tally of the official G'14 merchandise as well as other Godzilla licensed products released to take advantage of the film - that we know about so far, of course.
-Sea Monster, Hedorah, and Gigan on Blu-Ray
-Re-releases of the Classic Media DVDs
-Complete '98 animated series on DVD
-Toyline (aimed at kids) from Bandai
-Toyline (aimed at adult collectors) from NECA
-Tie-in books: novelization, Art of, kids activity books
-G'14 prequel graphic novel
-IDW miniseries unrelated to G'14 but released to coincide with film
-re-release of August's Tsuburaya book (not sure if this was timed to coincide, but still awesome)
and the year is just beginning, guys!