Picture element support

Hi,

we’re using a plugin to support webp images and it generates the following output

<picture width="1000" height="588" class="attachment-large size-large sp-no-webp" alt="" srcset="...."><source srcset="..." type="image/webp"><source srcset="..." sizes="(max-width: 1000px) 100vw, 1000px"><img src="..." width="1000" height="588" class="attachment-large size-large sp-no-webp" alt="" srcset="..." sizes="(max-width: 1000px) 100vw, 1000px"></picture>

The plugin seems to work fine when using just img elements, but not when using picture elements. Is there any plan to support this feature?