Here are the new products 2017: a Makro 7 Concentric (RC18C) mono coil for the Makro Racer and Makro Racer 2 metal detectors. Plus, a Nokta 7 Concentric (IM18C) mono coil for the Nokta Impact detector. Actually, these are the first not DD coils for given machines (including off-brand ones).
The complete list of search coils for the Nokta Impact detector can be found on Knowledgebase pages. There are also similar lists for the Makro Racer 1 and Makro Racer 2 (you can see either of these two – the Racer 1 shares the coil compatibility with the Racer 2). All new metal detectors 2017 are collected here.