It doesn't have to be the same girl behind the mask or anything, just something to go on. It'd be like taking somebody like Green Arrow and making him somebody other than Ollie Queen. Like Diggle's son becoming the new GA or something. Though he's obviously not available, Superman could be some guy named Chad who's just a metahuman solar battery rather than an alien. You could literally just switch the superhero alias and use a pic like that for reference and that'd be fine. 

Especially with 2nd string characters, I don't mind if you remake a character somewhat. Remember the big differences between the Golden Age and the Silver Age?

And for the record, I have absolutely no idea what's went on with that character just that there was a lot of people bitching about her when she was introduced. With the costume everyone lost their shit thinking shed'd be a new gun toting Nightwing after Grayson went deep under cover. 

~KL~