The 2320 and 2720 were replaced by the Generation 1 2025R and 2032R.
When the 2-series was redesigned the old 2025R was downsized to roughly match the existing 1-series machines. The 2032R was enlarged and the 2038R was introduced as a new machine. The 2032R and 2038R share pretty much everything except a HP rating.
So as of now there is a bit of a hole in the lineup in that sweet spot your 2320 occupies.
When the 2-series was redesigned the old 2025R was downsized to roughly match the existing 1-series machines. The 2032R was enlarged and the 2038R was introduced as a new machine. The 2032R and 2038R share pretty much everything except a HP rating.
So as of now there is a bit of a hole in the lineup in that sweet spot your 2320 occupies.