Yes and no. Less outdated tech means it will be easier since what you learn will feel useful, but there are quite a lot of stuff added or deepened.
OSPFv3 is now present. QoS is now much deeper. BGP is now there. SDN and APIC-EM will be the hardest part since Cisco has a very proprietary approach to SDN and the "cisco answer" might not be what is there in the real world. Also, who here will be able to practice with APIC-EM in an SDN deployment? Not a lot of people I guess...
QoS will probably be basic info about it not to much information because a CCNA won't be configuring QOS. SDN is huge and again it will only be touched upon not to deep till the NP level and that's a maybe. BGP is just brushed over (I doubt they will go into PAs like they do for route) and OSPFv3 isn't that bad.
Yes, it's basic QoS (section 4.3) and very basic BGP (section 3.6). For SDN, it will probably be only an overview of the general concepts.
After all, it's still their entry level cert
I think the only thing that should be even mentioned about BGP is the PAs, ASNs, and advertising networks. I feel old now