Lenovo has announced a new ThinkPad generation a few days ago, but not all models were updated. Now an internal Lenovo document has been leaked, which mentions some new ThinkPad models for the remainder of 2018.
https://www.notebookcheck.net/ThinkPad-Roadmap-Leak-2018-ThinkPad-A285-A485-with-Ryzen-T580p-P1-with-Coffeelake-Hexa-Core-CPUs.278054.0.html