It's all one big subdivision. WH Reserve is just the new section . All the roads connect and there is another entrance on Livingstone Rd for the new section but both areas can use either entrance. Just depends on which is easier or closer to where you're staying. Actually the homes in the newer section have a few upgrades that the original homes don't like slate tile roof, granite kitchen counters, upgraded cabinets etc. You can tell where the newest section starts by looking at the roofs of the homes.
And they all have access to the community pool, clubhouse, and resort facilities, same place, just a different name Pulte is using to sell those last few homes.