It's already with us, and with Lotus. I've decided to put the Elise on the road next summer after far too long sitting in the garage, so I made a list and went looking for bits.
Thankfully not needed (fingers crossed) but the plastic front/rear indicators & stop lamps are NLA, SJS have recommissioned a batch apparently but the OEM headlamps, an odd size with a recurve glass, are again NLA. Old stock (if you can find any) is expensive as you'd expect. Some suspension parts are the same and don't even think about asking for a replacement chassis. And that's on a car that is just over 20yrs old, mine is '99 and they were sold into 2000-2001 I think. I'll bet that the S2 Elise, <20yrs old with moulded headlamps is already in the rocking horse poo category now.
We bought a new Ford at the end of last year and there's so much electronics in the thing that I think cars are becoming like the modern TV, washing machine or freezer - work brilliantly until right to the point where they don't, and then you just dump it and buy a new one.....
Edit to add - out of curiosity I looked up the lamps for the S2, <2007. Still available at roughly £1k per corner.... wow.