The new activation and stratagem chits are in the shop. They are 20mm diameter and in glorious technicolour- it's easy to make the values out at a distance. I chose TtS! purple, green and burnt orange for the initial colours, because they contrast well with each other, so it is easy to distinguish between them if your opponent is also using chits (just so long as he's using a different colour!).
The activation chits come in packs of 80. They are two-sided, so play is quicker than with the previous single-sided MDF chits, since you don't need to flip them.
You can find them in the BigRedBatShop https://bigredbatshop.co.uk/collections/all/chits