I do find it a little weird when people mention Van Helsing having some of the worst special effects around, yet it's been 10 years and there are still films that are released with worse looking CGI. I always found Stephen Sommer a little too hated, i hated his G.I.Joe, but with the universal monsters action films it always looked to me like he had a soul for what he was doing and realy loved the material, even if there were some changes done for the worse, unlike some other modern "Mediocre Directors" such as Ratner or the guy who made the Underworld films.
I think the only real problem with Van Helsing besides the overuse of CGI was the plot, it indeed had a lot of problems, and i can also understand why some would be annoyed by the transformation of Van Helsing into a young non-dutch demon hunter. I wouldn't call it a good movie, far from it, but it had various elements i personaly enjoyed, with a few tweaks it could have been a realy amazing movie.
I don't think there's much to argue about the first Mummy film, i think it was genuinely good, while i did enjoy the second one a bit, i feel like the follow ups could have delivered more. Whenever they reboot the Mummy, i believe it should still be slightly action oriented, it doesn't need to be complete Gothic straight horror like the other Universal Monster films.
Did they say anything about modern times?
Yep
http://www.thewrap.com/universals-mummy-reboot-loses-mama-director-andy-muschetti-exclusive/
Jon Spaihts wrote the current draft of the script, which reimagined “The Mummy” franchise in modern day with new characters not seen in previous iterations and a protagonist imbued with a human personality.
Last i checked, Van Helsing was going to be the same thing too. To be honest the idea has already grown a little on me, but i don't think concepts like Invisible Man or Phantom of the Opera can make the jump to modern times very easily, i can't realy imagine Frankenstein working nowadays, I, Frankenstein even gave a glimpse at how bad that can get. Dracula and the Mummy are the only ones that can realy make the jump due to their abilities and being able to still hide, but the other monsters fit better in the past.
@Aztec The thing with the suggestion to start with lesser known properties is also that most studios usualy take Dracula, Frankenstein or even the Mummy now for granted, so they'll stay as close to formula as they possibly can, but if you start off with smaller projects that are genuinely aiming to be top tier films, then when you get to things such as Dracula, there will be some higher expectations they'll have to live up to.