The only thing that I think could replace the boars and still apply to the theme of the Northeast Russian coast would be Siberian musk deer, and that's never going to happen. I'm sure there are other possibilities for a new species that would properly represent the region but can't think of any. As for your other suggestions, I will be beyond furious if the play area is expanded over the enclosure. Also, there might not be an animal ambassador that could replace the boars except for maybe making another porcupine enclosure (which I wouldn't be surprised about, given recent decisions).Wild Boars have been removed from the zoo's website, all but confirming the species being phased-out. I wonder what they'll do with the old enclosure, if they'll leave it empty, add an animal ambassador, expand the nearby play area, or, most unlikely, replace the Boars with a new species. Yet another species to add to the growing list of phase-outs post pandemic.