It's also kind of amusing that there is now a Hipshot Ric bridge knock-off!
I think those have been kicking around for a while, but not accepted entirely by the Rick community. Babicz has come up with a drop-in Ricky bridge that looks more interesting.
The Jackson sort of looks like a lockdown project from somebody on Talkbass or something. If it had 5 strings...
I do think that it would be good for a manufacturer to use some principles from the designs of Rickenbacker basses but without breaching any trademarks etc. People copy the look of 4003 basses but don't really try and decipher the tone. Jackson have sort of done this, but its a weird mix of generic, unorthodox and pointy '80s elements that came out the mix.