This post is just let everyone know my experience.
I did the “FLEX VPN” on new IOS
Cisco IOS Software, Linux Software (I86BI_LINUX-ADVENTERPRISEK9-M), Version 15.7(3)M2, DEVELOPMENT TEST SOFTWARE
and I did not get the issue of not getting /32 route. I did not rebooted my routers and the connectivity works perfectly.
I also did not get SPOKE to SPOKE EIGRP Neighbor
R4#sh ip ei ne
EIGRP-IPv4 Neighbors for AS(1)
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 192.168.1.5 Tu1 14 00:07:31 11 1470 0 11
R4#ping 10.3.3.3 so lo0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.3.3.3, timeout is 2 seconds:
Packet sent with a source address of 10.4.4.4
Success rate is 100 percent (5/5), round-trip min/avg/max = 7/8/10 ms
but I am always going through HUB although I have redirect and shortcut command in place.