You can see the progress of the MWEB (MimbleWimble Extension Block) project here [1], headed by Grin++ [2] developer David Burkett.
[1] https://litecoindotcom.medium.com/litecoin-mimblewimble-nove...
[1] https://litecoindotcom.medium.com/litecoin-mimblewimble-nove...
Is there a Mimblewimble / Litecoin integration effort? If so, I'd sure love to learn more about it.
And if there isn't can you offer something in the way of a proof?