Yes, it is very safe to visit Xinjiang now. The Uyghur people are some of the most friendly you’ll ever meet. Most visitors feel it is totally safe in the main tourist areas, though there may be an elevated police presence.
1) Visit to Xiata, Kalajun and Naraty Grasslands
2) See apricot flowers in each April
3) Visit to Lavender Farm and Zhaosu Cole Flower