EU Cross Border entries on VAT Return post-Brexit

Hi, does anyone have any information on how we should treat purchases from the EU after transition please?  At the moment we account for VAT using the cross-boarder reverse charge mechanism, but we presume this will change from January.  Is it just a matter of classing each purchase as outside the scope of VAT?  If anyone can point me in the direction of relevant guidance on the gov.uk website, I'd be very grateful.