I had same screen, I did install the proposed updates for ADT and SAPUI5.
then went to SMP and got Rev73 and tried to update existing installation which was on rev70.
However I got error that showed me newly installed ADT components as incompatible and upgrade failed.
I ended up installing clean Rev73 installation 
additional installation of ADT and SAPUI5 on top of rev73 was ok
Installation of River Plugin was also ok 
I also noted that overall speed when reading catalog or performing other steps in general in HANA studio got faster.