Thanks for stopping by to let us know something is being done. On the visual front not a lot needs to really be done, just not changing the color filter in the viewport (that causes the illusion of the field of view changing during the transition) and changing the snow effect to use the current Sescheron snow effect, not the original one that it is currently using.
It would also help HC players trenemdously if the Classic team would flag the effects’ damage aspects (especially the combo physical/lightning beam) as non-reflectable. Currently that lightning beam can one shot you when reflected off of mobs that are capable of doing so (e.g. Dervishes).