No. You can not record slow-motion video with Redmi Y2.
Yes, Redmi Y2 does have the bokeh mode.
Yes, Redmi Y2 does have the front camera flash.
Yes, Redmi Y2 does have the IR blaster.
The Xiaomi Redmi Y2 is a slightly better attempt at a selfie-focused smartphone than the model it replaces. It has proven hardware that is capable of delivering a smooth user experience, plus MIUI 9.5 which has a lot of added features.