Canon EF-S 20mm f/2.8 STM lens patent

Canon filed a patent for an EF-S 20mm f/2.8 STM lens. Will this be the next pancake lens for APS-C DSLRs?

• Patent Publication No. 2015-111192
  • Published 2015.6.18
  • Filing date 2013.12.6
• Example 3
  • Focal length 20.65mm
  • Fno. 2.88
  • Half angle of view ω = 33.48 °
  • Image height Y = 13.66mm
  • Overall length of the lens 64.00mm
  • BF 35.30mm
• Canon patents
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