Playmates tried many times to bring the line back to life, but it never caught on like it originally had in the late 80's/early 90's.
And now, almost 20 years later, TMNT has finally once again found the life it once had-- a very rare event for any toy line.
Playmate recently released some new photos featuring figures from both Series 8 and 9. I'm not sure which figures will be in which waves, however.
(Thanks to toynewsi.com for the photos.)