Well I heard leveling will slow down considerably so explore mode may become very very grindy

Yea I heard that too . Ahhhh will see when the game comes out . I just like seeing conversation and listening about what destiny final launch might have might even surprise us idk ugh lol

Yea I know but what are your thoughts on this ?

Basically: 5 planets (well, 4 and a moon). Each of these are represented by one map each for PVE, (ie Old Russia is Earth, The Moon was represented for 2hr during beta). Within these maps, are the 32 story quests, strike missions, and possibly Raids (these will likely just be Instanced, reached from Orbit, like Crucible). In the Future, the "substantial" DLC's that Bungie mentioned, will (hopefully) be new explorable maps, wether on the existing planets (Mars Mercury Venus Earth, and Luna) or maybe even new locales. These new maps will also come with a NEW storyline, as Bungie already says that "Finishing this campaign will end THIS part of the story". And it's more than safe to say, they will add more content such as more Nightfalls, Strike Missions, etc. The way to keep this game fresh, like MMO's do, is to add more events, higher tiers of rewards, level cap increases, etc. So this is all just our chunk of the "vanilla" game, and once we all get bored from mastering the existing Endgame content, we have new stuff to look forward to, such as exploring more of the universe both geographically, and in lore.