I have some of these and I really loved it so much. I am not sure when it will come back but try emailing CP. But I will know they will say like nothing and ignorant as always but just give a shot...

I loved collecting every series (I have series 1-10) I haven't seen any series 11 in toy stores

I lost some figures in the past Rookie melted down (on a hot day I brought him outside) and If you have the igloo playset sadly I lost the puffle (I have 2 igloos 2normal blue penguins and I gave 1 puffle to my friend)

I seen more unreleased figures that I might show you I miss the little figures so much

Mix and Match figures can melt like that? :O

Some kinds of plastic melt easily...

Wow... I know I won't be taking mine in the sun anytime soon!

I have some and they are: Shadow Guy, Mild Mannered Reporter, Space Man, Space Alien, Frankenpenguin and Bumble Bee

Not melted but the figure did get messed up because the paint came off