I am pretty sure there are no populations with high Denisovan ancestry on the Asian side of the Wallace line. Do you have a reference which describes such a population?
https://academic.oup.com/gbe/article/9/8/2013/3952725
Malaysian and Andamanese Negritos don't.
This paper is very interesting though as it provides clues as to how the Denosovian spread through the Sahul. It adds even more support that the new homo sp. found in the OA are Denosovian.