Not quite.
In the West,
TFA was first broadcast in late 2007, and ran until summer 2009.
It's the first TF TV series since
Galaxy Force ended in 2005 (in Japan), as well as the first to have been made in the West since
Beast Machines wrapped up (back in 2000).
(There might be a new upcoming Western series on the way (reported as
Transformers: Prime, in the absence of an officially confirmed name) but not much solid data as of yet. However, if
TFA is successful in Japan, I'm hoping there might be an impetus to create a new TF anime series... but time will tell.)