Something super desperate about this comment....wait, what? First Sony camera to have WiFi tethering will only ship in September?
Looks like Sony is playing catch-up.
I think Canon is going to surprise people. It "feels" like they are sitting on something. I could be wrong of course. IMO the big tell will come with the next sensor. If they choose to rehash the 5DSR sensor into the high res model, I think it signals they've fallen pretty far behind in sensor development. We know they have had FF high MP sensors in the development pipeline for years; if they don't bring them out now, it's probably because they don't compete well against the Sonys (on some level, cost, DR, whatever). I think Sony is really pushing to force Canon into a position where it has to use Sony sensors, that alone would be an absolutely huge win for Sony within the market.I think one of the takeaways from the announcement is Eye AF in video mode which up to this point has only been available in stills. They've also improved the ergonomics by carrying over the MyDial feature from the A6400, locking the exposure dial and redesigning the grip/buttons as I hated bumping into the exposure dial all the time when my R3/3/9 camera was on a carrier. Not sure about the improved weather sealing, but the A7III and EOS R were about level in terms of weather sealing based on past reviews for the most part.
Aside from that the new shotgun mic is also nice which I could probably replace my existing Sony Shotgun K2M kit with. The multi-interface shoe has been exceptionally handy for video work which I use all the time as you don't need sloppy 3.5mm cables or AA batteries for phantom power. The new mic is a lot smaller and has multiple pickup modes which means carrying a smaller kit around.
Everything else was expected and not overly exciting. Dual UHS-II was probably needed to handle dual 60MP redundant writes with any sort of acceptable speed. But in terms of video specs alone, it is largely the same as what is already on the 3rd gen bodies. It didn't even get a stacked sensor, so the readout probably won't be much different. Sony decided not to offer 4k60 either, which I expected since it would probably eat into the S3 spec sheet.
FWIW, Sony has 2 more bodies to be announced between now and September based on rumors: One RX body and obviously the A7SIII. Everything is a few months out anyways, so it will be interesting to see what Canon's upcoming flagship looks like.