All her dresses, coats, hats and and handbags? (As well as most of her her belongings I guess).
I can imagine a fashion exhibit at the V&A at some point like there's have been with lots of other designers and icons. But there will be such a vast amount. A vault somewhere? I can't imagine riffling through at a local Windsor / Westminster charity shop and just finding one of her dresses hanging there. Where will they all go? There's 70 years worth!