A little while ago we reported that Intel is to release three new three CPU SKUs. An 8-core, 16-thread CPU (Core i9 9900K); a 6c/12t one (Core i7 9700K) and a 6c/6t part (Core i5 9600K ).
The processors all will be a series 9000 model and based on Coffee Lake architecture. Asia based website coolaler now adds some juicy details to these processors. We're looking at only mild tweaks.
The Core i9-9900K (if it's really named like that) of course would be the premium 8-core part, released to battle AMD with their 8-core Ryzen processors, in specific the ZEN+ Ryzen 2700X. Though I still have a gut feeling that AMD is hiding a 2800X for release to compete with the Core i9-9900K (but perhaps that's wishful thinking). That 9700K was expected to be a 6-core part, but now looks to be an 8-core one, however lacking Hyperthreading. Intel is expected to launch these chips later at the end of Q3 2018.
Update: screenshot added with SiSift Sandra entry showing 9700K with 8 threads (no HT)
Intel Core i9-9900K, i7-9700K, i5-9600K specifications exposed (updated)