My Versys switch showed up today. So far I can guarantee it's from the same manufacturer, the housing is exactly the same, just with the flasher and hazard buttons. It has the clutch switch connector as well. Even the handlebar detention pin is the same.
It has 12 wires in the Versys connector, which is different from the Tenere connector. I haven't gotten into the wiring side of it yet. The harness is also shorter than the Tenere harness.
From looking at the inside of the switches, as long as there's no more wires that need to be run, it'll be easiest to swap the wires inside the switch instead of changing the plug at the end.
EDIT: I lied, I broke into the switches.
The mechanisms for all the switches is the same, HOWEVER, the internals are very different as far as wiring.
The Tenere uses 7 wires (plus 2 for clutch switch) so 9 wires at the plug under the right side panel)
The Versys uses 15 individual wires inside the switch (plus 2 for clutch switch), but some of the wires are redundant, so only 12 terminate at the plug.
MAJOR differences:
High beam: Versys uses 3 wires, Tenere uses 2.
Signals: Versys uses 5 (and 5 for hazards, but only 6 unique wire colors), Tenere uses 3.
Breaking out the volt meter, the Tenere high beam switch is a normally open circuit till you flip the high beams on, then the circuit is closed, so it assumes you want low beams until you tell it high beams. This also means that with some simple wiring, we can add in the flash-to-pass just by connecting to the high beam wires. Simple.
With the signals, being a 3-wire switch is super easy as well, once I figure out the circuit inside the Versys switch. The Tenere switch, if you bridge both circuits, all 4 lights flash, so it's a dead-simple circuit. All we need to do with the hazards is make sure it does that. The Versys is doing it with 5 wires, the Tenere only needs three.
Cliff notes: Still working on it, but adding the Versys switch will be very simple, most will just be moving the internal switches to the Versys housing, so you won't even need to disconnect the Tenere switch from the harness.
EDIT2: Cut the sleeving off the Versys switch so I could see what wires spliced together inside the sleeving. The flash-to-pass wiring is wired in exactly how we'll do it on the Tenere, the wires are just spliced in down the harness, the two wires to the FTP switch are different colored than the high-beam wires, but they connect together in the harness.
EDIT3: More volt meter stuff. The 5-wire signal and hazard switch inside the Versys has a ground circuit for when the switch is NOT active, for some reason. i.e., when the hazards are not on, there is a closed circuit telling the bike that the switch is off. Same with the turn signals, which is why they are 5-wires vs the Tenere's 3-wire. We can completely ignore these circuits (and this is where the 3 extra wires come from in the Versys plug)
EDIT4: Horn switch is different, but that's simple to desolder from the Versys switch and solder to the Tenere wires. The highbeam switch mounts the same, as does the turn signal switch.