Please tell me Sony mount will be available!
Yes, it’s available! 
if the camera can be Z Nikon mount it will be amaaaaaizing so we can use E, EF, PL, LPL Lenses :)
Any chance for EF or MFT mount?
Ah, the eternal mount debate! We’re collecting everyone’s wish lists, and if EF or MFT mounts are popular choices, they’ll definitely climb up our development ladder. Keep those suggestions coming!
Going for the Z Nikon mount, are we? Well, Rome wasn’t built in a day! 
But we’ll keep your amazing idea on our radar. Keep those creative suggestions coming!
I think you should consider releasing the camera in L mount as well. L mount is becoming an increasingly popular open mount, and I think a new platform like yours would benefit from incorporating this mount. It is an extremely versatile mount via adapters, and many companies are making high-quality and inexpensive AF and MF lenses for it. Please consider adding L mount to this camera. Thank you.
It seems like we all need a lot of mounts. If the Spark can support the Z mount with the shortest flange distance, then other mounts can be managed—it’s just a matter of time and licensing. I suggest designing the Spark with a removable lens mount, so we can choose according to our needs. Of course, initially, E and PL are the best choices since they have the largest selection of lenses available.