Yes 1X will be front loaded for the first few/couple of months.
The question is will it kick start the Xbox brand as a whole.
The pre orders seems to have done very well.
1H 2018 should have a few exclusives, so if the brand starts rolling from the current stall, then it may be able to have reasonable momentum.
It will take MS to push 1S & 1X though, otherwise could end up stalling again like 1S did.
It's up to MS to reboot the franchise, the 1X gives them the opportunity, MS still needs to do a lot more to follow through.
a) all it's major first party games should be HDR, 4K, Enhanced and really trying to be that graphical powerhouse it could not be on XBO. Since they are getting another go at it, they can really do their best to amp things way up without reservation. There are a lot of older titles that could use some more play by the player bases imo, perhaps a fresh coat of paint will entice more users.
b) really push for those 3rd parties to HDR, 4K, Enhanced editions of their games, they've done their best in this regard I think, making the SDK as easy as possible to port to.
c) amp up that game pass or something of the sort. Get people to play all those amped up games.
d) get back into the library game, no one wants an empty 1H 2018, but we're seeing a lot of that right now.
imo, if MS doesn't want to play the AAA 1P game, then all their AAA games and hardware must always be best in class in terms of graphics.
Their indie scene looks pretty good to me right now.