theoretically there will be some a10 cpus released later but with ryze, not sure
with the ryzen release the 1151 socket for the pentium could be also replaced so easy replace could be as hard for fm2+ socket
atm is cheaper on most countries to go with the fm2+
i just build a x4 860k, from the reviews, yes it is faster the pentium
but the intel was alot more expensive, especially ddr3 and mainboard locally, fm2 was alot cheaper and i could reuse my old ddr3 which lower even more the price
for that pentium you need a expensive b250, it is on some places cheap, locally on others very expensive, the cheapest mainboard for it is a asrick itx but is gen 6 firmware so you need to upgrade bios first, a pita for most, inpossible sometimes, no supported cpu means no bios update