until we have production cars out there, making any assumptions is a gamble... but would assume anything for the center console (wraps, cup well liners, console trays, etc), steering wheels/steering wheel wraps, door button wraps, exterior handle wraps, repeater camera wraps/caps, mirror caps/wraps, ambient light upgrades, door sill plate wraps, screen protectors, accelerator/brake/dead pedal covers
things that may not fit could be dash wraps/covers, fitted floor mats & trunk mats, mud flaps, trunk/frunk fitted storage accessories, roof rack (?)
Not sure which pad you have, but from what we know and have seen , the Model Y interior console is pretty much identical to the Model 3. Barring no last minute changes, Model 3 products should fit the same in the Model Y.
Bright Tesla logo puddle lights, mattress for cargo area, all weather floor and cargo mats, roof sun shade with reflective material ( on a road trip from SF to Santa Fe I ended up putting my windshield shield between the roof glass and the Tesla roof shade accessory so the intense Arizona and New Mexico sun wasn’t beating down on me), console wraps,