From CNET:
TC-PZT60 series (65 and 55 inches) Panasonic's 2013 flagship promises "Beyond the Reference" picture quality, with an all-new Studio Master panel that has the thinnest gas layer yet, which the company says will remove dim and double images. There's a newly developed red phosphor, faster switching than ever, THX certification for both 2D and 3D, and improved 3D performance -- namely less crosstalk -- according to Panasonic.
TC-PVT60 series (55, 60, 65 inches) Numerically this one looks like the successor to the VT50, and I expect it to have similar picture quality. The only mentions of picture quality in Panasonic's early press release are THX certification and better motion resolution than the 2012 version.
TC-PST60 series (50, 55, 60, 65 inches) In name and feature set, Panasonic's cheapest 3D-capable plasma series looks like the successor to our favorite TV of 2012, the Panasonic ST50. It has an Infinite Black Pro panel and might not quite match the motion resolution of the VT and ZT models (it has a "2500 Focused Field Drive" versus their 3000), nor their black-level performance, but should still be pretty great. As with the other two 3D series, the company is also including two pairs of active 3D glasses. Pricing was not announced, and it'll be interesting to see whether this series can match the excellent value of its predecessor.
TC-PS60 series (42, 50, 55, 60, 65 inches) In Panasonic's 1080p non-3D series, I expect the picture quality to match that of the excellent U50 models, which were also great values.
TC-PX60 series (42 and 50 inches) This looks like a clone of last year's X5 series, which was disappointing, to say the least.