Its obviously sad. open-mp promises to be backward compatible with SAMP. There seem to be no need atm to halt any project but IMO when the SAMP forum closed it was not well received from the server owner community. I think people thought Kalcor was gonna end SAMP but the thing is, it happened just after AGAIN another post 'DEMANDING' answers from Kalcor because he is inactive and I sense that he only closed the forum to get rid of THOSE. That was my 2 cent but,
IN CONCLUSION: I think most ppl thought SAMP was gonna stop because the forum closed but IMO in reality there is no reason/need to end any project for SAMP.