I would argue the software line-up for both systems are already better than last years output, and we are still in the first month of the year! Also, Paper Mario for WiiU was just leaked, plus Pikimin 4 is rumored alongside a Next-Level developed game for WiiU this year. If true, WiiU is getting an uncharacteristic amount of first-party support for a console that is supposedly being replaced this year. Though I agree that both lineups are currently front-loaded, and the 3DS first party support is drying up, so that's something!
As for the profit angle, The projected increase could solely be referring to the new apps, amiibo, software, and television/theme parks/merchandise contracts that nintendo has planned. I personally wouldn't put much stock (no pun intended) in PR investor lingo when it comes to projecting a date for new hardware.
I guess what I'm trying to say is that I'm not fully buying a 2016 launch yet. It concerns me that Kimishima has double-downed on us receiving NX information this year in the 2016 plans, instead of just coming outright and saying NX will be revealed and launched this year. And at this point in the WiiU thread, substantial leaks were ramping up with 10 months to go before launch. We have heard zip about the NX in comparison, with rumors that major developers are still waiting for dev kits. But somehow this thing is gonna launch this year? Either Nintendo is somehow grown more daft since the WiiU launch, or we are (sadly) looking a year+ wait.