I reckon final percentage will be between a lot higher for this gen by the end (60-65%) and for the following reasons
1. WiiU is a non event this generation, it will not have any effect on the numbers and will continue to track badly against the PS4.
2. MSFT will not stay in this generations race as long as Sony plan to. I can see them bowing out to release a new version console around 2018/2019 so with Sony being the only one pushing the console long term this gen they have it wrapped up.
3. Game line up for PS4 is arguably stronger than for Xbox1.
4. Snowball effect, the larger the marketshare, the more likely people looking to buy a console will be drawn to it.
5. Whist hardware differences exist they should become more apparent in the latter stages of the consoles life.
6. Price cuts boosted the XBOX but haven't as yet appeared officially from Sony, when these come out it will boost sales and marketshare.







