Categorise brands to allow sub-categories

Hi, my store sells motorcycle products, I’m using the Premmerce Brands plugin in combination with a Products Filter. Unfortunately the Premmerce Filter wouldn’t work with the theme, so I had to use one from a different company. I’ve now got a problem where I’m trying to filter the tyres-search by sizes and Brand, but when I use the taxonomy ‘Brand’ it lists all the clothing and spares brand-names, as well as the tyres brands.

If the Brands could be sub-categorised (parent/child brands), I could set the filter to only display the ‘Tyre Brands’ (parent Category).

I saw another support request on a similar topic, where you mentioned this feature may be worked-on for next release, how soon is that likely to be available please?