Oracle's Sonoma chip is said to be a new, lost-cost processor for SPARC-based servers to compete with Intel's Xeon processors. Unfortunately the exact pricing and anticipated launch date for Sonoma aren't available, other than that it's more of a Xeon competitor rather than the currently elevated SPARC price-range. Sonoma is also one of the first new SPARC designs out in a few years.
More details on Oracle's Sonoma processors are expected to be announced at the Hot Chips conference, coming up near the end of August. Hopefully the cost will be low enough that it will be worthwhile to pick up a Sonoma system for benchmarking at Phoronix, otherwise almost surely there will be performance results uploaded from the community to OpenBenchmarking.org.
More details as they become available.