Sorry, too late. Tilke has already designed the track that is being build right now. It’s the Igora-Drive, 80 km north of St Petersburg.
” The main circuit layout bears more than a little resemblance to Tilke’s Motorland Aragon design, though this may be no bad thing, as it is one of his more successful designs which promotes good racing. The Igora Drive circuit does not, however, appear to benefit from the elevation changes seen at the Spanish venue. “ (source)