Veronica Mars, which now airs in [the Pussycat Dolls] spot, will take a breather then return for five non-serialized episodes — a first for that series — to finish out the season.To anticipate the question, there is not yet word on whether “Mars” will get a fourth season. The CW, like all the other broadcast networks, announces its fall slate in mid-May. In other CW news announced at the netlet’s Television Critics Association presentation: * “7th Heaven” does not look likely to be renewed for another season. * Unlike fellow UPN immigrant “Mars,” “Everybody Hates Chris” just got a 22-episode order for next season. * “Hidden Palms,” the new series from “Dawson’s Creek” mastermind Kevin Williamson, may get bumped from midseason to summer. * “America’s Top Model” returns on Feb. 28. * The netlet is developing a beauty-contest reality series and a family drama that would be set and filmed in South Africa. Read more of The CW’s plans here.