I have a family member who works for Remington. The word I have received is that Remington typically creates work ups, or prototypes. They use these for events, gun shows, and product displays at shot show. They see which items garner buzz and which fail to gain traction. With the grips the word from marketing is they halted production when they had the initial errors with the Gen1's. they did have plenty of them made, as several retailers and suppliers listed them on their sites.
But they now have a few different versions of the grips that are about to come out. No set ETA, but the employee I spoke with said he seen them in his office. And also got to see the new 870 DM, (detachable mag) same basic setup as the classic 870, but with a AR style mag well to attach various sized mags. Will come in the known lineup but now with more camos including kryptec and desert camos.
But they now have a few different versions of the grips that are about to come out. No set ETA, but the employee I spoke with said he seen them in his office. And also got to see the new 870 DM, (detachable mag) same basic setup as the classic 870, but with a AR style mag well to attach various sized mags. Will come in the known lineup but now with more camos including kryptec and desert camos.