So over the weekend Mark Hamill tweeted:
I’m begging you! For your own good-DO NOT READ this spoiler-laden comic book before FridayDecember15th 2017 You’ll thank me later
Now take this with a pinch of salt , he is the joker after all! I’ve read this issue online when it originally came up in the spec community. I can say that there’s nothing significant, that I remember, that happens in this comic that would tie in to The Last Jedi film.
Here’s an issue synopsis if you want to check it out yourself: http://starwars.wikia.com/wiki/Star_Wars_49:_The_Last_Jedi
It reminds me of when everyone (including me) was hunting down Dark Empire II for the first app of the Solo twins because everyone thought that they would be in The Force Awakens (Ben and Rey could still be twins but I doubt it and they still aren’t called Jaina and Jacen)
The films rarely borrow any plot details from the older comics, so be very careful with this one. On the other hand if you have a copy, now may be the time to sell it because I’m 99% certain after the film releases no ones going to want to buy it at current prices !