SH5 is NOOOOOOT and never will be an arcade game. It's not even anywhere near the level of basic of FPS games, or jump and run games... and not even these games are arcade games. Games of the "arcade genre" have incredibly short levels, and it's all about high scores and stuff.
How in the hell can SH5 be called an arcade game?
SH5 will not be an ultra-realistic sim, but it's still a simulation.