No. The "Stulos" στῦλον [Pillar] referenced in Revelation 3.12 is a heavenly reward for truly observant Ἰουδαίους Yehudim, as stated in Revelation 3.1-11.
How could this memorial pillar be rewarded to observant disciples called 'Χριστιανούς' [Acts 11:26] by Jesus the Nazarene who "having abolished in his flesh the enmity, that is, the law of commandments contained in ordinances, so as to create in himself one new man" [Ephesians 2:15] ?
We learn the Jesus of [Revelation 3.21] is simply a new "ktisis" κτίσεως [creation] -- which directly contradicts Jesus the Nazarene from [Mark 10:40] "but to sit on My right hand and on My left is not Mine to give" (10:40 τὸ δὲ καθίσαι ἐκ δεξιῶν μου καὶ ἐξ εὐωνύμων μου οὐκ ἔστιν ἐμὸν δοῦναι ἀλλ᾽ οἷς ἡτοίμασται). -- And now the new Jesus of [Revelation 3.21] claims : "To him who overcomes I will grant to sit with Me on My throne, as I also overcame and sat down with My Father on His throne." - [Revelation 3.21] supplanting the authority of The-God (Ha-Elohim) from Tanakh.