I always got the vibe that boba and han had a personal issue like maybe they were even buddies at one ppint and han screwed him over itd be nice to see some of that. as for the snoke comments im not posotive snoke is dead if you listen snokes telling rey and kylo it was him who was connecting them, and literally right after he snarls and says he cant be betrayed kylo kills him almost as though snoke knew kylo would try, snoke comes off as way too powerfull to be killed by a cheep slight of hand not and then at the end of the movie kylo and rey are connected again the same way snoke had been connecting them all movie , another thing to notice is snoke appears much younger and less beat up in the throne room scene similar to how luke looks much younger when he fights kylo, i have a hunch that snoke was doing in the throne room something like what luke was doing on crait, they have a few things in the visual dictionary that describe snoke in more detail and provide some plausability to the idea such as even the few who he trusts have never seen him in person... i could be totally wrong though and if anyone were to take this mess and make it messier it would be jj so we will see (i think it was a mistake to have so many different directors for all the star wars films now it kinda feels like each film is star wars from someone elses point of view)