This has been expected for the past two years. I doesn't meet European emission regs and has been out for 9 model years. Most sportscars without a significant remodel in that time frame die as well (S2000). No surprise and without a significant change in the engine no reason to keep it as it's not competitive with what is currently on the market.
Hopefully they will build a good replacement for it MX or RX whatever works best. I loved the chasis and design not specifically the engine when I owned one. Slap a Porsche flat 6 in the front and it would be a beast.