Looks like Okatava are planning on releasing an active cable solution to use with their existing capsules.
Found this online today:
http://www.oktava-online.com/Taken from the website:
"After numerous requirements from our customers we have developed a new preliminary amplifier for our most popular MK-012 microphone, which extends its modularity and turns it into a compact condenser microphone.
The new preamp is divided into two parts with an extension cable, the front part of the cable has a size of standard XLR connector.
Before putting the new preamp into production we want to know your opinion about some details. So if you are interested in this product we would ask you to fill in a short questionnaire, this will enable us to consider your wishes."