Sorry for the late reply, if you are in the park already then I hope that the crowds aren't that bad for you, but if not, then I would guess that it won't be as bad as yesterday, but it would be even less later.
EDIT: According to an article in GP today which said something about Flumeride made an E-stop, also said that there were 14000 visitors in the park today, which really are a lot of people for a Sunday this late in the season.
Oops! Lets try that again
Np. thanks! I'm very happy I didn't go!
I went this Thursday instead I had a great time. 5-10 min to everything! Too bad Lisebergbanan was closed all day :/ but I actually didn't see them working on Helix all day. FlumeRide made an E-stop again when I was there