I think Hamilton can break the two most important records from Schumacher, as long as he got the wheels to do it. The Mercedes team at the moment is build around him like Ferrari at Schumachers time. He hasn't got anything to fear from within the team. In contrast, Ferrari, who was building the whole team around Vettel, changed their strategy by putting a young hungry fighter next to their main man next year. Even if Ferrari builds the best car next year, they are going to steal points and wins from each other plus, depending on Lecrec's development, I can't see Vettel staying after his current contract (which would mean a max of two championships).
Two more seasons of this Mercedes/Hamilton and he's got them... but all winning streaks come to an end at one point....
Let's say, next year, Hamilton wins his "normal" ten GP's, Vettel takes five again, Leclerc on the rise with two and Verstappen has a few non-DNF's with the Honda to win three and Gasly takes one. Then in 2020 they all share about the same GP's, seven for each brand, with Hamilton taking all the Mercedes wins. that would bring him unto 90. so close...