If the 890 is working for you, no need to change.
The newest models are the DIR-822, 878, and 882. Also the COVR-2202 and COVR-1203 if you are looking for mesh.
I personally still use the 890L which seems very stable for me.
D-Link is releasing 4-5 new models that can be MESH by adding extenders (EXO line). Most models should be due out in the US between the summer and end of the year.