I'm not sure they are keeping 6 WRs with all the 21 and 12 personnel this offense is likely to use. They might, but one of them would likely have to be a good special teams guy and I don't think Perry, Tipton, or Means are. My best guess is they keep 5 - Olave, Shaheed, Wilson, Means, and Perry. I'd hate to cut Tipton, but he will probably make it to the practice squad and given the time he missed due to injury and not playing in preseason, it makes it hard to keep him on the team with no skins on the wall.
That could change in the last preseason game, but I think Means is now close to a lock. I would expect Perry to make it, but if someone has a great preseason game this week, he could get cut.