Considering they've hired Kem from Love Island to replace Jordan Banjo as their "digital presenter" I suspect the training rink remains. I think it was the backdrop of the screens which made it feel small.
The training rink has been included as part of an updated studio design, but will not feature on screen in the new series. The 'tunnel' has more prominence, and the skaters will still warm up on the training rink, before entering the studio one. The set has also received a slight refresh, included updated screens and colours, with the main studio rink being slightly larger in size, with a more square shape. The size of the audience has also been marginally increased.
The show will be live from the purpose-built facilities at Bovingdon Airfield again and the studio and the ancillary building(s) are of a semi-permanent design, with planning permission having been granted to maintain the site until 2023.
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Brekkie, TVFan2017 and Juicy Joe gave kudos