I’m working at ST, in the marketing team in charge of STM32 ecosystem offer. So let me clarify things.
- ST values the partnership with AC6 and is still willing to partner for the years to come
- All STM32 firmware packages currently delivered officially under st.com come with the native support for 3 base IDEs: IAR EWARM, Keil MDK-ARM and AC6 SW4STM32. There is no intention to modify this list anytime soon.
- ST acquired Atollic to speed up its ability to propose more stability and features. You can therefore expect we study some merges, eased by all the common ingredients in the two solutions (Eclipse, GCC, etc...). ST will take special attention to ensure that projects created under SW4STM32 and TrueStudio can still be reused in the merged result.
Hoping it clarifies things !