On paper sure, though their best chance is winning it this year. They've gotten this far and to do it again over the next couple of years won't be easy. You never know what could happen to some of their pitchers; Cespedes and Murphy are gone likely, injuries etc. Plus as we saw in the ALDS and NLDS, any team could make it through in a 5 game series. Also, consider Washington likely will be a better team if they make some big offseason moves. On paper, the Mets should be the best in the NL East, though its so difficult to make the postseason every year, let alone get through the DS. Everyone is healthy now, so this is the year. They might not have another golden opportunity like they do now.
Go Mets!