Thomas Oden devotes a page and a half of his preface in Classic Christianity to defending 'inclusive' language. He's conservative by Methodist standards, but a bit to the left of moderate by other standards. Also, he's a member of the 'paleo-orthodoxy' movement; Classic Christianity is not a Wesleyan-Arminian systematic theology, but rather a study in 'ecumenical Patristic consensus.' I'm reading through my copy right now, and I gotta say I'm a little disappointed with it. He did, however, write an ostensibly useful four-volume study about, and called, "John Wesley's Teachings."
The most contemporary conservative Holiness work you're going to find is H. Orton Wiley's three volume "Christian Theology" written back in 1940 for the Church of the Nazarene. You can get the set on Amazon for about 70 bucks, but it's public domain now and has been digitally released for free elsewhere.
Most of the 'conservative Holiness' movement was absorbed by Pentecostalism in the early 20th century, but almost all Pentecostal theologians today are non-Wesleyan. Stanley Horton's Systematic Theology and Duffield-Van Cleave's Foundations of Pentecostal Theology are excellent, and Arminian, but neither Wesleyan nor Holiness.
French Arrington of the Church of God, Cleveland wrote a three volume systematic theology in the early 90s - Christian Doctrine: A Pentecostal Perspective. The Church of God is the oldest Pentecostal denomination, and still the largest of the Wesleyan variety. Any vestiges of the conservative Holiness movement that remain in Wesleyan Pentecostalism are going to be in Arrington's work. I haven't read it, so I'm not sure how good it is, but he, Wiley, and perhaps Oden's four volumes on Wesley are the only conservative works I know of that have been written in the last 100 years.