Cool we have an announcement on who's playing him. That said to me it's not that huge of a deal. Neither Marvel, or Sony to a point, have ever really cast someone that was absolutely wrong and terrible for the role. Most problems with these movies have really come from both studio interference, bad writing, and the fact that these movies are very formulaic. That's my biggest worry. Spider-Man is very a very different character than the characters in the MCU. He doesn't save the world and billions of people on a daily basis. His stories are very small and personal akin to Daredevil but in a very fantastical sense. It's what makes the first 2 Spider-Man movies so great. They focus on Peter's relationships with other characters, and while in Spider-Man 2's climax he had to save the city, Spider-Man's climax is just Spider-Man saving people on a bridge and a brutal fight with Green Goblin.
So I hope that they do a good job. Have no idea about Jon Watts, and haven't heard anything about writers.