Update. I have finished most of the nhl98 rom. Cannot figure out how to add the new teams to create 32 total teams. What I did though was add the nsh, min, vgk, cbj, wpg to the usa, can, world and allstar rosters. I switched the original 98 allstar rosters with the EA and THQ rosters.
Tile Editor is definitely a steep learning curve that I will not be taking on at this time. If anyone can hack 32 teams and edit the tiles for the new teams you'd be doing Gods work.
I also may have figured out how to keep star player moves. Somehow Grandlund kept Kariya's zig zag move when I edited the nashville roster over the allstar west lineup. Has something to do with the HEX ID I think.
PM for file.