If you really want the upgrade then I would recommend you wait until someone confirms they received it. Although I think they will raise the prices for the new config.Is this ambient lighting, new seats, front camera a hearsay or actually something coming? I'm new to all this and am ready to pull the trigger on a MSP but don't want to do it so soon and miss these new upgrades.
When I asked the Tesla SA about the upgrade they said nothing is officially confirmed. If there is a new update the respective customers will be notified of the change just like they did with stealth grey.