I could be wrong but, I highly doubt any developer is going to step up and take over the coin - unless they really love pot and feel like taking on a project for fun. OSMIUMCOIN is running this thread, but he made it clear in the OP that he is not the new developer.
I would think any new developer is going to want something for taking over the coin. The only avenue I can see is that they'd relaunch the coin with a premine and a swap. That would give them some stake in the game. Of course, that introduces a whole new trust factor and changes to Cryptopia, etc. The NUC to TRA swap for Pizz last coin didn't work out well at all. TRA was dead in a few weeks.
There are hardly any posters in the multiple other threads created about MAR - the scam thread, the first takeover by OSMIUMCOIN, and this second thread by OSMIUMCOIN.
I see a stalemate. No developer... no progress, nothing - OSMIUMCOIN is making a great attempt.
The coin doesn't even had a block explorer to take a look at. Not sure how long until coinmarketcap sets this coin to inactive.