The NHL said that they would and aparently they have.

[BillsSabresB.C.T. Fan]

During intermission reports they have Puck Trax that is used the same way as the Fox Trax to make the puck easier to see.

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[CuseJetsFan83]

to follow it during highlights..... they'd look foolish using that in the actual games

its just like a spot shadow in any other sport...

[SabreEleven]

and they took away announcers...