(Just so you know, it's "hommage", with two "m". Because
va te faire foutre, that's why
)
I wouldn't be too keen to see Becca used in the same role she already has in H5, actually. I think something discrete is always preferable, like maybe a PPF poster or a few lines talking about a scene from another game. But using straight-up another game's character, and especially for the narration bit which could be the very first scene your players will see, I think there are more subtle ways to pay tribute to our favorite Smuttress.
Cameos are only as great as the scene/game/movie/media whatsoever they appear in. If I was to make the shittiest turd of a movie with nonsensical plot, awful acting, etc. and then put in great characters from a great movie, let's say Darth Vader, to use an over-the-top example. Then my movie would not only
not be better, but it would sully an important character for everyone. Now, if I were to make the funniest movie ever, with a great story and wonderful actors, and then add Tommy Wiseau's character from Tommy Wiseau's movie The Room (by Tommy Wiseau), it would not diminish my own movie but would instead shed a positive light on TW.
Long story short: be careful with cameos.