IIRC, when Nintendo announced both 3DS and Wii successor (not Wii U yet), they said they would have been shown at E3, right away. This didn't happen when they talked about the QoL platform. They just said that the platform would have been shown / officially announced this year.
At the same time, Iwata didn't esitate to say their brand new efforts in using NFC would have been at E3.
So, if this rumour has any resemblance of being true, it shouldn't be the QoL platform.
Today I would like to limit my presentation to the general direction of our new business, but I plan to announce more details within 2014. I then plan to talk about its specific features and a clearer vision of what we really mean by the term non-wearable.
This new business will be launched during the fiscal year ending March 2016, which begins in April 2015. As this is a completely new field of business, our plan is to make it contribute to our overall business and position it for growth from following fiscal year.
At the same time, Iwata didn't esitate to say their brand new efforts in using NFC would have been at E3.
This year, we will make full use of this function by preparing multiple proposals, including the implementation of NFC payments with JR Easts Suica, which we announced on a previous occasion. We will showcase our detailed propositions for utilizing the NFC functionality at E3 in Los Angeles in June.
So, if this rumour has any resemblance of being true, it shouldn't be the QoL platform.
I would have said also due to the whole tone of the announcement (including the "Games fan, this is what you have ben waiting for" phrase), but maybe it's better to not use obvious hype-inducing slogans as definitive hints