Nothing new, just reiterating
A bit of reiteration on what other have so sagely pointed out:
For every-four-years watchers, Sasha won't be remembered at all. For twice-a-year watchers, she'll be remembered as having freakish flexibility.
As far as spirals - Nichole took them to a place they had not heretofore been. Michelle went a step further with a change of edge spiral. Sasha added uncommon flexibility. It is pretty much universally agreed that Nichole and Michelle created a thing of beauty. It isn't necessarily agreed that Sasha did the same. I've always found it to be more contortionist that pretty, but that's just me.
As far as skating with joy - Janet Lynn did that. Sasha did not. She will not be remembered for skating with joy.
All this hinges on whether or not she retires now from eligible competition. Then there is her post-eligible career.
There are no pro championships anymore. Perhaps, with a recent influx of recently retired from eligible skaters, these could be revived. If not, Sasha will certainly not have the opportunity to make her mark as a pro champion (like, for example, Elena Leonova and Andre Khvalko did as pro pairs - they had no eligible record).
As far as show skating, as time goes by, the skaters with the best basics are the ones who can do this, night after night, year after year. The jumps eventually fail them all, but the edging, the stroking and the connection with the audience last long. Sasha has thus far demonstrated none of these, at least not on the level with Yuka or Kurt or Kristi. So, I'm not a fortune teller, but I doubt she'll make her mark this way, either.
So much for that! Sorry Sasha, have a good life. Perhaps she will have another career that doesn't involve cameras or performance, out of the lime light, quietly working and finding her own personal success like the rest of us.
Linny