Recently a new coronavirus strain, COVID-19 has emerged in Wuhan City, China which cause disease and in many cases deaths to humans. Considering its severity a number of works are working on it and full genomic sequences has already released in the last few weeks to understand the evolutionary origin and molecular characteristics of this virus. Based on currently available genomic information a phylogenetic tree was constructed from four types of representative viral proteins (Spike, Membrane, Envelope and Nucleoproetin) of COVID-19, HCoV-229E, HCoV-OC43, SARS-CoV, HCoV-NL63, HKU1, MERS-CoV, HKU4, HKU5 and BufCoV-HKU26 clearly demonstrated that the ancestral origin and distant evolutionary relation of newly epidemic novel coronavirus (COVID-19). It had been found that COVID-19 was evolutionary related to SARS-CoV. It was also found that COVID-19 proteins were almost more than ninety (90%) similar and identical with SARS-CoV proteins. The cross-checked conservancy analysis of COVID-19 antigenic epitopes showed significant conservancy with SARS-CoV proteins. VaxiJen server reveal almost 100% immunogenic potential of four viral proteins with COVID-19. In this article, we present an effort on molecular evolutionary analysis, temperature comparison and compile and analyze epidemiological outbreak information on the 2019 novel coronavirus based on the several open datasets on COVID-19 (SARS-COV-2) and possible threat to Bangladesh.Authors Md Bashir Uddin and Mahmudul Hasan contributed equally to this work