Update 18-55 & 55-200 WR - any info?

The Pentax press release for the K50 indicated that these two lenses had received upgrades, anyone know what the update(s) are?
http://www.dpreview.com/news/2013/06/12/Pentax-launches-k-50-k-500-16MP-mid-and-...

Not really an upgrade - they're relasing DA-L versions of the WR kit lenses. So no hood, plastic mount, but WR.

Hi, I read it as the first L versions with WR. Unless they have the newer HD coating I doubt they are changed optically.